1622325121 has 2 divisors, whose sum is σ = 1622325122. Its totient is φ = 1622325120.

The previous prime is 1622325101. The next prime is 1622325157. The reversal of 1622325121 is 1215232261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1151652096 + 470673025 = 33936^2 + 21695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1622325121 - 2⁹ = 1622324609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1622325101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811162560 + 811162561.

It is an arithmetic number, because the mean of its divisors is an integer number (811162561).

Almost surely, 2^1622325121 is an apocalyptic number.

It is an amenable number.

1622325121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622325121 is an equidigital number, since it uses as much as digits as its factorization.

1622325121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 1622325121 is about 40278.0972862423. The cubic root of 1622325121 is about 1175.0219089924.

Adding to 1622325121 its reverse (1215232261), we get a palindrome (2837557382).

The spelling of 1622325121 in words is "one billion, six hundred twenty-two million, three hundred twenty-five thousand, one hundred twenty-one".