2012020111216 has 20 divisors (see below), whose sum is σ = 3898321685392. Its totient is φ = 1006001611776.

The previous prime is 2012020111193. The next prime is 2012020111217. The reversal of 2012020111216 is 6121110202102.

It is a junction number, because it is equal to n+sod(n) for n = 2012020111193 and 2012020111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012020111217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731061 + ... + 2649643.

Almost surely, 2^{2012020111216} is an apocalyptic number.

It is an amenable number.

2012020111216 is a deficient number, since it is larger than the sum of its proper divisors (1886301574176).

2012020111216 is a wasteful number, since it uses less digits than its factorization.

2012020111216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055488 (or 1055482 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2012020111216 its reverse (6121110202102), we get a palindrome (8133130313318).

The spelling of 2012020111216 in words is "two trillion, twelve billion, twenty million, one hundred eleven thousand, two hundred sixteen".