22111020111212 has 72 divisors (see below), whose sum is σ = 41230107122400. Its totient is φ = 10373357776896.

The previous prime is 22111020111199. The next prime is 22111020111233. The reversal of 22111020111212 is 21211102011122.

It is a super-3 number, since 3×22111020111212³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 2933659508 + ... + 2933667044.

It is an arithmetic number, because the mean of its divisors is an integer number (572640376700).

Almost surely, 2^{22111020111212} is an apocalyptic number.

It is an amenable number.

22111020111212 is a deficient number, since it is larger than the sum of its proper divisors (19119087011188).

22111020111212 is a wasteful number, since it uses less digits than its factorization.

22111020111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15003 (or 14984 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22111020111212 its reverse (21211102011122), we get a palindrome (43322122122334).

The spelling of 22111020111212 in words is "twenty-two trillion, one hundred eleven billion, twenty million, one hundred eleven thousand, two hundred twelve".