2122111012212 has 48 divisors (see below), whose sum is σ = 5515489526400. Its totient is φ = 705606307200.

The previous prime is 2122111012201. The next prime is 2122111012249. The reversal of 2122111012212 is 2122101112212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24456912 + ... + 24543527.

It is an arithmetic number, because the mean of its divisors is an integer number (114906031800).

Almost surely, 2^{2122111012212} is an apocalyptic number.

It is an amenable number.

2122111012212 is an abundant number, since it is smaller than the sum of its proper divisors (3393378514188).

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

2122111012212 is a wasteful number, since it uses less digits than its factorization.

2122111012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49000853 (or 49000845 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2122111012212 its reverse (2122101112212), we get a palindrome (4244212124424).

The spelling of 2122111012212 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, twelve thousand, two hundred twelve".