22012001011212 has 24 divisors (see below), whose sum is σ = 53132416234800. Its totient is φ = 7084322164416.

The previous prime is 22012001011123. The next prime is 22012001011237. The reversal of 22012001011212 is 21211010021022.

It is a super-2 number, since 2×22012001011212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22012001011191 and 22012001011200.

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, 31626437887 + ... + 31626438582.

It is an arithmetic number, because the mean of its divisors is an integer number (2213850676450).

Almost surely, 2^{22012001011212} is an apocalyptic number.

It is an amenable number.

22012001011212 is an abundant number, since it is smaller than the sum of its proper divisors (31120415223588).

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

22012001011212 is a wasteful number, since it uses less digits than its factorization.

22012001011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63252876505 (or 63252876503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22012001011212 its reverse (21211010021022), we get a palindrome (43223011032234).

The spelling of 22012001011212 in words is "twenty-two trillion, twelve billion, one million, eleven thousand, two hundred twelve".