520122221025 has 96 divisors (see below), whose sum is σ = 964354753536. Its totient is φ = 245138400000.

The previous prime is 520122220931. The next prime is 520122221051.

520122221025 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 520122221025 - 2⁷ = 520122220897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520122220986 and 520122221004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35737500 + ... + 35752050.

It is an arithmetic number, because the mean of its divisors is an integer number (10045362016).

Almost surely, 2^520122221025 is an apocalyptic number.

520122221025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520122221025 is a deficient number, since it is larger than the sum of its proper divisors (444232532511).

520122221025 is a wasteful number, since it uses less digits than its factorization.

520122221025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15783 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

It can be divided in two parts, 520122 and 221025, that added together give a palindrome (741147).

The spelling of 520122221025 in words is "five hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, twenty-five".