22011000000012 has 18 divisors (see below), whose sum is σ = 55638916666788. Its totient is φ = 7336999999992.

The previous prime is 22011000000001. The next prime is 22011000000019. The reversal of 22011000000012 is 21000000011022.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22010999999940 and 22011000000003.

It is not an unprimeable number, because it can be changed into a prime (22011000000019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305708333298 + ... + 305708333369.

Almost surely, 2^{22011000000012} is an apocalyptic number.

It is an amenable number.

22011000000012 is an abundant number, since it is smaller than the sum of its proper divisors (33627916666776).

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

22011000000012 is a wasteful number, since it uses less digits than its factorization.

22011000000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611416666677 (or 611416666672 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22011000000012 its reverse (21000000011022), we get a palindrome (43011000011034).

The spelling of 22011000000012 in words is "twenty-two trillion, eleven billion, twelve", and thus it is an aban number and an uban number.