122521051 has 2 divisors, whose sum is σ = 122521052. Its totient is φ = 122521050.

The previous prime is 122521039. The next prime is 122521081. The reversal of 122521051 is 150125221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122521051 - 2⁵ = 122521019 is a prime.

It is a super-2 number, since 2×122521051² = 30022815876289202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122521081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61260525 + 61260526.

It is an arithmetic number, because the mean of its divisors is an integer number (61260526).

Almost surely, 2^122521051 is an apocalyptic number.

122521051 is a deficient number, since it is larger than the sum of its proper divisors (1).

122521051 is an equidigital number, since it uses as much as digits as its factorization.

122521051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 122521051 is about 11068.9227569805. The cubic root of 122521051 is about 496.6726411505.

Adding to 122521051 its reverse (150125221), we get a palindrome (272646272).

The spelling of 122521051 in words is "one hundred twenty-two million, five hundred twenty-one thousand, fifty-one".