10220631 has 4 divisors (see below), whose sum is σ = 13627512. Its totient is φ = 6813752.

The previous prime is 10220597. The next prime is 10220647. The reversal of 10220631 is 13602201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10220631 - 2¹¹ = 10218583 is a prime.

It is a super-2 number, since 2×10220631² = 208922596076322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10220631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703436 + ... + 1703441.

It is an arithmetic number, because the mean of its divisors is an integer number (3406878).

Almost surely, 2^10220631 is an apocalyptic number.

10220631 is a deficient number, since it is larger than the sum of its proper divisors (3406881).

10220631 is an equidigital number, since it uses as much as digits as its factorization.

10220631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406880.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10220631 is about 3196.9721612801. The cubic root of 10220631 is about 217.0164074040.

Adding to 10220631 its reverse (13602201), we get a palindrome (23822832).

The spelling of 10220631 in words is "ten million, two hundred twenty thousand, six hundred thirty-one".