10122221222 has 8 divisors (see below), whose sum is σ = 15183769656. Its totient is φ = 5060964672.

The previous prime is 10122221203. The next prime is 10122221231. The reversal of 10122221222 is 22212222101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10122221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68873 + ... + 158075.

It is an arithmetic number, because the mean of its divisors is an integer number (1897971207).

Almost surely, 2^10122221222 is an apocalyptic number.

10122221222 is a deficient number, since it is larger than the sum of its proper divisors (5061548434).

10122221222 is an equidigital number, since it uses as much as digits as its factorization.

10122221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145942.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10122221222 its reverse (22212222101), we get a palindrome (32334443323).

The spelling of 10122221222 in words is "ten billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".