521115223422030 has 16 divisors (see below), whose sum is σ = 1250676536212944. Its totient is φ = 138964059579200.

The previous prime is 521115223422007. The next prime is 521115223422049. The reversal of 521115223422030 is 30224322511125.

It is a super-2 number, since 2×521115223422030² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521115223421982 and 521115223422000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8685253723671 + ... + 8685253723730.

It is an arithmetic number, because the mean of its divisors is an integer number (78167283513309).

Almost surely, 2^{521115223422030} is an apocalyptic number.

521115223422030 is an abundant number, since it is smaller than the sum of its proper divisors (729561312790914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521115223422030 is a wasteful number, since it uses less digits than its factorization.

521115223422030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17370507447411.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 521115223422030 its reverse (30224322511125), we get a palindrome (551339545933155).

The spelling of 521115223422030 in words is "five hundred twenty-one trillion, one hundred fifteen billion, two hundred twenty-three million, four hundred twenty-two thousand, thirty".