10222222212 has 72 divisors (see below), whose sum is σ = 27691774656. Its totient is φ = 3171161664.

The previous prime is 10222222211. The next prime is 10222222223. The reversal of 10222222212 is 21222222201.

10222222212 is a `hidden beast` number, since 10 + 222 + 222 + 212 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (10222222211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136198 + ... + 197469.

Almost surely, 2^10222222212 is an apocalyptic number.

10222222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10222222212 is an abundant number, since it is smaller than the sum of its proper divisors (17469552444).

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

10222222212 is a wasteful number, since it uses less digits than its factorization.

10222222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333737 (or 333732 counting only the distinct ones).

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

Adding to 10222222212 its reverse (21222222201), we get a palindrome (31444444413).

It can be divided in two parts, 10 and 222222212, that added together give a palindrome (222222222).

The spelling of 10222222212 in words is "ten billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".