245402252112122 has 24 divisors (see below), whose sum is σ = 429747744131604. Its totient is φ = 104792710018752.

The previous prime is 245402252112109. The next prime is 245402252112181. The reversal of 245402252112122 is 221211252204542.

It can be written as a sum of positive squares in 2 ways, for example, as 217334200423081 + 28068051689041 = 14742259^2 + 5297929^2 .

It is a super-2 number, since 2×245402252112122² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4520017283 + ... + 4520071574.

Almost surely, 2^{245402252112122} is an apocalyptic number.

245402252112122 is a deficient number, since it is larger than the sum of its proper divisors (184345492019482).

245402252112122 is a wasteful number, since it uses less digits than its factorization.

245402252112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040089150 (or 9040089143 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

The spelling of 245402252112122 in words is "two hundred forty-five trillion, four hundred two billion, two hundred fifty-two million, one hundred twelve thousand, one hundred twenty-two".