2122111220012 has 24 divisors (see below), whose sum is σ = 4268755527456. Its totient is φ = 904219147008.

The previous prime is 2122111219973. The next prime is 2122111220029. The reversal of 2122111220012 is 2100221112212.

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, 219040493 + ... + 219050180.

It is an arithmetic number, because the mean of its divisors is an integer number (177864813644).

Almost surely, 2^{2122111220012} is an apocalyptic number.

It is an amenable number.

2122111220012 is an abundant number, since it is smaller than the sum of its proper divisors (2146644307444).

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

2122111220012 is a wasteful number, since it uses less digits than its factorization.

2122111220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438090857 (or 438090855 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2122111220012 its reverse (2100221112212), we get a palindrome (4222332332224).

It can be divided in two parts, 21221112200 and 12, that added together give a palindrome (21221112212).

The spelling of 2122111220012 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty thousand, twelve".