1012222002222 has 64 divisors (see below), whose sum is σ = 2289541939200. Its totient is φ = 331435994400.

The previous prime is 1012222002193. The next prime is 1012222002227. The reversal of 1012222002222 is 2222002222101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1012222002195 and 1012222002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012222002227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38022 + ... + 1423337.

It is an arithmetic number, because the mean of its divisors is an integer number (35774092800).

Almost surely, 2^{1012222002222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012222002222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1144770969600).

1012222002222 is an abundant number, since it is smaller than the sum of its proper divisors (1277319936978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012222002222 is a wasteful number, since it uses less digits than its factorization.

1012222002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461598 (or 1461592 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1012222002222 its reverse (2222002222101), we get a palindrome (3234224224323).

It can be divided in two parts, 101 and 2222002222, that multiplied together give a palindrome (224422224422).

The spelling of 1012222002222 in words is "one trillion, twelve billion, two hundred twenty-two million, two thousand, two hundred twenty-two".