22212111101100 has 72 divisors (see below), whose sum is σ = 64651874181888. Its totient is φ = 5887761172800.

The previous prime is 22212111101087. The next prime is 22212111101113. The reversal of 22212111101100 is 110111121222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22212111101087) and next prime (22212111101113).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22212111101100.

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, 221627656 + ... + 221727855.

Almost surely, 2^{22212111101100} is an apocalyptic number.

22212111101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212111101100 is an abundant number, since it is smaller than the sum of its proper divisors (42439763080788).

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

22212111101100 is a wasteful number, since it uses less digits than its factorization.

22212111101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443355695 (or 443355688 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22212111101100 its reverse (110111121222), we get a palindrome (22322222222322).

The spelling of 22212111101100 in words is "twenty-two trillion, two hundred twelve billion, one hundred eleven million, one hundred one thousand, one hundred".