1220111200012 has 48 divisors (see below), whose sum is σ = 2348604115200. Its totient is φ = 552038984640.

The previous prime is 1220111200001. The next prime is 1220111200093. The reversal of 1220111200012 is 2100021110221.

It is a junction number, because it is equal to n+sod(n) for n = 1220111199965 and 1220111200001.

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, 747087 + ... + 1731577.

It is an arithmetic number, because the mean of its divisors is an integer number (48929252400).

Almost surely, 2^{1220111200012} is an apocalyptic number.

It is an amenable number.

1220111200012 is a deficient number, since it is larger than the sum of its proper divisors (1128492915188).

1220111200012 is a wasteful number, since it uses less digits than its factorization.

1220111200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985246 (or 985244 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220111200012 its reverse (2100021110221), we get a palindrome (3320132310233).

The spelling of 1220111200012 in words is "one trillion, two hundred twenty billion, one hundred eleven million, two hundred thousand, twelve".