22011122110212 has 72 divisors (see below), whose sum is σ = 59097964115736. Its totient is φ = 6883666258944.

The previous prime is 22011122110183. The next prime is 22011122110223. The reversal of 22011122110212 is 21201122111022.

22011122110212 is a `hidden beast` number, since 220 + 1 + 1 + 1 + 221 + 10 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 222242473476 + 21788879636736 = 471426^2 + 4667856^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56534523 + ... + 56922530.

It is an arithmetic number, because the mean of its divisors is an integer number (820805057163).

Almost surely, 2^{22011122110212} is an apocalyptic number.

It is an amenable number.

22011122110212 is an abundant number, since it is smaller than the sum of its proper divisors (37086842005524).

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

22011122110212 is a wasteful number, since it uses less digits than its factorization.

22011122110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113457397 (or 113457392 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22011122110212 its reverse (21201122111022), we get a palindrome (43212244221234).

The spelling of 22011122110212 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, one hundred ten thousand, two hundred twelve".