10220920 has 16 divisors (see below), whose sum is σ = 22997160. Its totient is φ = 4088352.

The previous prime is 10220911. The next prime is 10220921. The reversal of 10220920 is 2902201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10220894 and 10220903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220921) 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, 127722 + ... + 127801.

Almost surely, 2^10220920 is an apocalyptic number.

10220920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220920 is an abundant number, since it is smaller than the sum of its proper divisors (12776240).

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

10220920 is a wasteful number, since it uses less digits than its factorization.

10220920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255534 (or 255530 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 10220920 is about 3197.0173599779. The cubic root of 10220920 is about 217.0184528469.

The spelling of 10220920 in words is "ten million, two hundred twenty thousand, nine hundred twenty".