1022313121 has 4 divisors (see below), whose sum is σ = 1044064512. Its totient is φ = 1000561732.

The previous prime is 1022313109. The next prime is 1022313137. The reversal of 1022313121 is 1213132201.

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 1022313121 - 2¹⁵ = 1022280353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022313095 and 1022313104.

It is not an unprimeable number, because it can be changed into a prime (1022313101) 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, 10875625 + ... + 10875718.

It is an arithmetic number, because the mean of its divisors is an integer number (261016128).

Almost surely, 2^1022313121 is an apocalyptic number.

It is an amenable number.

1022313121 is a deficient number, since it is larger than the sum of its proper divisors (21751391).

1022313121 is an equidigital number, since it uses as much as digits as its factorization.

1022313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21751390.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1022313121 is about 31973.6316517220. The cubic root of 1022313121 is about 1007.3830632280.

Adding to 1022313121 its reverse (1213132201), we get a palindrome (2235445322).

The spelling of 1022313121 in words is "one billion, twenty-two million, three hundred thirteen thousand, one hundred twenty-one".