2122130312211 has 64 divisors (see below), whose sum is σ = 3577573035008. Its totient is φ = 1088813311488.

The previous prime is 2122130312207. The next prime is 2122130312231. The reversal of 2122130312211 is 1122130312212.

It is not a de Polignac number, because 2122130312211 - 2² = 2122130312207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2122130312231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39437721 + ... + 39491493.

It is an arithmetic number, because the mean of its divisors is an integer number (55899578672).

Almost surely, 2^{2122130312211} is an apocalyptic number.

2122130312211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2122130312211 is a deficient number, since it is larger than the sum of its proper divisors (1455442722797).

2122130312211 is a wasteful number, since it uses less digits than its factorization.

2122130312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57740.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2122130312211 its reverse (1122130312212), we get a palindrome (3244260624423).

Subtracting from 2122130312211 its reverse (1122130312212), we obtain a palindrome (999999999999).

The spelling of 2122130312211 in words is "two trillion, one hundred twenty-two billion, one hundred thirty million, three hundred twelve thousand, two hundred eleven".