22211220000012 has 48 divisors (see below), whose sum is σ = 54855276403200. Its totient is φ = 6975317695680.

The previous prime is 22211219999977. The next prime is 22211220000061. The reversal of 22211220000012 is 21000002211222.

It is a junction number, because it is equal to n+sod(n) for n = 22211219999946 and 22211220000000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269068212 + ... + 269150747.

It is an arithmetic number, because the mean of its divisors is an integer number (1142818258400).

Almost surely, 2^{22211220000012} is an apocalyptic number.

It is an amenable number.

22211220000012 is an abundant number, since it is smaller than the sum of its proper divisors (32644056403188).

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

22211220000012 is a wasteful number, since it uses less digits than its factorization.

22211220000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538219166 (or 538219164 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22211220000012 its reverse (21000002211222), we get a palindrome (43211222211234).

The spelling of 22211220000012 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty million, twelve", and thus it is an aban number.