222220112100012 has 72 divisors (see below), whose sum is σ = 621282055198896. Its totient is φ = 66527434802304.

The previous prime is 222220112100001. The next prime is 222220112100023. The reversal of 222220112100012 is 210001211022222.

It is a happy number.

222220112100012 is a `hidden beast` number, since 222 + 220 + 1 + 1 + 210 + 0 + 0 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (222220112100001) and next prime (222220112100023).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6416594838 + ... + 6416629469.

It is an arithmetic number, because the mean of its divisors is an integer number (8628917433318).

Almost surely, 2^{222220112100012} is an apocalyptic number.

It is an amenable number.

222220112100012 is an abundant number, since it is smaller than the sum of its proper divisors (399061943098884).

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

222220112100012 is a wasteful number, since it uses less digits than its factorization.

222220112100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833224367 (or 12833224362 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222220112100012 its reverse (210001211022222), we get a palindrome (432221323122234).

The spelling of 222220112100012 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twelve million, one hundred thousand, twelve".