10220532531 has 12 divisors (see below), whose sum is σ = 14978852616. Its totient is φ = 6194261920.

The previous prime is 10220532527. The next prime is 10220532547. The reversal of 10220532531 is 13523502201.

It is a happy number.

It is not a de Polignac number, because 10220532531 - 2² = 10220532527 is a prime.

It is a super-2 number, since 2×10220532531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10220532571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14077506 + ... + 14078231.

It is an arithmetic number, because the mean of its divisors is an integer number (1248237718).

Almost surely, 2^10220532531 is an apocalyptic number.

10220532531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10220532531 is a deficient number, since it is larger than the sum of its proper divisors (4758320085).

10220532531 is a wasteful number, since it uses less digits than its factorization.

10220532531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28155762 (or 28155751 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 10220532531 in words is "ten billion, two hundred twenty million, five hundred thirty-two thousand, five hundred thirty-one".