2522211321 has 16 divisors (see below), whose sum is σ = 3857056128. Its totient is φ = 1436131200.

The previous prime is 2522211283. The next prime is 2522211323. The reversal of 2522211321 is 1231122252.

It is not a de Polignac number, because 2522211321 - 2⁷ = 2522211193 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 (2522211323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207810 + ... + 219611.

It is an arithmetic number, because the mean of its divisors is an integer number (241066008).

Almost surely, 2^2522211321 is an apocalyptic number.

2522211321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2522211321 is a deficient number, since it is larger than the sum of its proper divisors (1334844807).

2522211321 is a wasteful number, since it uses less digits than its factorization.

2522211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427712.

The product of its digits is 480, while the sum is 21.

The square root of 2522211321 is about 50221.6220466842. The cubic root of 2522211321 is about 1361.2163499875.

Adding to 2522211321 its reverse (1231122252), we get a palindrome (3753333573).

The spelling of 2522211321 in words is "two billion, five hundred twenty-two million, two hundred eleven thousand, three hundred twenty-one".