21122332213001 has 4 divisors (see below), whose sum is σ = 21139490891904. Its totient is φ = 21105173534100.

The previous prime is 21122332212997. The next prime is 21122332213051. The reversal of 21122332213001 is 10031223322112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21122332213001 - 2² = 21122332212997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21122332213051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8579337605 + ... + 8579340066.

It is an arithmetic number, because the mean of its divisors is an integer number (5284872722976).

Almost surely, 2^{21122332213001} is an apocalyptic number.

It is an amenable number.

21122332213001 is a deficient number, since it is larger than the sum of its proper divisors (17158678903).

21122332213001 is a wasteful number, since it uses less digits than its factorization.

21122332213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17158678902.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21122332213001 its reverse (10031223322112), we get a palindrome (31153555535113).

It can be divided in two parts, 2112233 and 2213001, that added together give a palindrome (4325234).

The spelling of 21122332213001 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred thirty-two million, two hundred thirteen thousand, one".