2122111222212 has 48 divisors (see below), whose sum is σ = 4964067557120. Its totient is φ = 705590095392.

The previous prime is 2122111222207. The next prime is 2122111222237. The reversal of 2122111222212 is 2122221112212.

It is a nude number because it is divisible by every one of its digits.

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, 9466083 + ... + 9687669.

Almost surely, 2^{2122111222212} is an apocalyptic number.

It is an amenable number.

2122111222212 is an abundant number, since it is smaller than the sum of its proper divisors (2841956334908).

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

2122111222212 is a wasteful number, since it uses less digits than its factorization.

2122111222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223600 (or 223598 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

Adding to 2122111222212 its reverse (2122221112212), we get a palindrome (4244332334424).

The spelling of 2122111222212 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, two hundred twelve".