22202312020 has 96 divisors (see below), whose sum is σ = 54645373440. Its totient is φ = 7420385280.

The previous prime is 22202312009. The next prime is 22202312023. The reversal of 22202312020 is 2021320222.

It is a junction number, because it is equal to n+sod(n) for n = 22202311985 and 22202312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202312023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 872112 + ... + 897208.

It is an arithmetic number, because the mean of its divisors is an integer number (569222640).

Almost surely, 2^22202312020 is an apocalyptic number.

22202312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22202312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27322686720).

22202312020 is an abundant number, since it is smaller than the sum of its proper divisors (32443061420).

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

22202312020 is a wasteful number, since it uses less digits than its factorization.

22202312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25273 (or 25271 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22202312020 its reverse (2021320222), we get a palindrome (24223632242).

The spelling of 22202312020 in words is "twenty-two billion, two hundred two million, three hundred twelve thousand, twenty".