511020113226 has 64 divisors (see below), whose sum is σ = 1175862804480. Its totient is φ = 145029870720.

The previous prime is 511020113183. The next prime is 511020113243. The reversal of 511020113226 is 622311020115.

It is a happy number.

It is a super-2 number, since 2×511020113226² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511020113196 and 511020113205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10292830 + ... + 10342358.

It is an arithmetic number, because the mean of its divisors is an integer number (18372856320).

Almost surely, 2^511020113226 is an apocalyptic number.

511020113226 is an abundant number, since it is smaller than the sum of its proper divisors (664842691254).

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

511020113226 is a wasteful number, since it uses less digits than its factorization.

511020113226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51179.

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 511020113226 in words is "five hundred eleven billion, twenty million, one hundred thirteen thousand, two hundred twenty-six".