1622130121 has 2 divisors, whose sum is σ = 1622130122. Its totient is φ = 1622130120.

The previous prime is 1622130119. The next prime is 1622130143. The reversal of 1622130121 is 1210312261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1090320400 + 531809721 = 33020^2 + 23061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1622130121 - 2¹ = 1622130119 is a prime.

It is a super-2 number, since 2×1622130121² = 5262612258910949282, which contains 22 as substring.

Together with 1622130119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1622139121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811065060 + 811065061.

It is an arithmetic number, because the mean of its divisors is an integer number (811065061).

Almost surely, 2^1622130121 is an apocalyptic number.

It is an amenable number.

1622130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622130121 is an equidigital number, since it uses as much as digits as its factorization.

1622130121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1622130121 is about 40275.6765430452. The cubic root of 1622130121 is about 1174.9748287350.

Adding to 1622130121 its reverse (1210312261), we get a palindrome (2832442382).

The spelling of 1622130121 in words is "one billion, six hundred twenty-two million, one hundred thirty thousand, one hundred twenty-one".