22011100022212 has 24 divisors (see below), whose sum is σ = 44852807595456. Its totient is φ = 9255341248608.

The previous prime is 22011100022207. The next prime is 22011100022213. The reversal of 22011100022212 is 21222000111022.

It is a happy number.

It is a super-2 number, since 2×22011100022212² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22011100022213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7416137338 + ... + 7416140305.

It is an arithmetic number, because the mean of its divisors is an integer number (1868866983144).

Almost surely, 2^{22011100022212} is an apocalyptic number.

It is an amenable number.

22011100022212 is an abundant number, since it is smaller than the sum of its proper divisors (22841707573244).

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

22011100022212 is a wasteful number, since it uses less digits than its factorization.

22011100022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14832277707 (or 14832277705 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22011100022212 its reverse (21222000111022), we get a palindrome (43233100133234).

The spelling of 22011100022212 in words is "twenty-two trillion, eleven billion, one hundred million, twenty-two thousand, two hundred twelve".