2220121000012 has 48 divisors (see below), whose sum is σ = 4028572033024. Its totient is φ = 1069425504000.

The previous prime is 2220121000007. The next prime is 2220121000039. The reversal of 2220121000012 is 2100001210222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2220120999956 and 2220121000001.

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, 99532453 + ... + 99554755.

Almost surely, 2^{2220121000012} is an apocalyptic number.

It is an amenable number.

2220121000012 is a deficient number, since it is larger than the sum of its proper divisors (1808451033012).

2220121000012 is a wasteful number, since it uses less digits than its factorization.

2220121000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25910 (or 25908 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2220121000012 its reverse (2100001210222), we get a palindrome (4320122210234).

The spelling of 2220121000012 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, twelve", and thus it is an aban number.