2122311213021 has 16 divisors (see below), whose sum is σ = 3016387251200. Its totient is φ = 1323439900848.

The previous prime is 2122311213017. The next prime is 2122311213047. The reversal of 2122311213021 is 1203121132212.

It is not a de Polignac number, because 2122311213021 - 2² = 2122311213017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122311211021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235650751 + ... + 235659756.

It is an arithmetic number, because the mean of its divisors is an integer number (188524203200).

Almost surely, 2^{2122311213021} is an apocalyptic number.

It is an amenable number.

2122311213021 is a deficient number, since it is larger than the sum of its proper divisors (894076038179).

2122311213021 is a wasteful number, since it uses less digits than its factorization.

2122311213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471310608.

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

Adding to 2122311213021 its reverse (1203121132212), we get a palindrome (3325432345233).

It can be divided in two parts, 2122311 and 213021, that added together give a palindrome (2335332).

The spelling of 2122311213021 in words is "two trillion, one hundred twenty-two billion, three hundred eleven million, two hundred thirteen thousand, twenty-one".