100111211212222 has 16 divisors (see below), whose sum is σ = 171619380633600. Its totient is φ = 42904764452088.

The previous prime is 100111211212211. The next prime is 100111211212241. The reversal of 100111211212222 is 222212112111001.

It is a happy number.

It is a super-2 number, since 2×100111211212222² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100111211212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15832323 + ... + 21234049.

It is an arithmetic number, because the mean of its divisors is an integer number (10726211289600).

Almost surely, 2^{100111211212222} is an apocalyptic number.

100111211212222 is a deficient number, since it is larger than the sum of its proper divisors (71508169421378).

100111211212222 is a wasteful number, since it uses less digits than its factorization.

100111211212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725535.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 100111211212222 its reverse (222212112111001), we get a palindrome (322323323323223).

The spelling of 100111211212222 in words is "one hundred trillion, one hundred eleven billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-two".