22000021011012 has 24 divisors (see below), whose sum is σ = 56000053482912. Its totient is φ = 6666673033600.

The previous prime is 22000021010987. The next prime is 22000021011049. The reversal of 22000021011012 is 21011012000022.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 83333412789 + ... + 83333413052.

It is an arithmetic number, because the mean of its divisors is an integer number (2333335561788).

Almost surely, 2^{22000021011012} is an apocalyptic number.

22000021011012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22000021011012 is an abundant number, since it is smaller than the sum of its proper divisors (34000032471900).

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

22000021011012 is a wasteful number, since it uses less digits than its factorization.

22000021011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166666825859 (or 166666825857 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22000021011012 its reverse (21011012000022), we get a palindrome (43011033011034).

The spelling of 22000021011012 in words is "twenty-two trillion, twenty-one million, eleven thousand, twelve".