10221880 has 32 divisors (see below), whose sum is σ = 23091840. Its totient is φ = 4072320.

The previous prime is 10221877. The next prime is 10221899. The reversal of 10221880 is 8812201.

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, 16537 + ... + 17143.

It is an arithmetic number, because the mean of its divisors is an integer number (721620).

Almost surely, 2^10221880 is an apocalyptic number.

10221880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221880 is an abundant number, since it is smaller than the sum of its proper divisors (12869960).

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

10221880 is a wasteful number, since it uses less digits than its factorization.

10221880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 10221880 is about 3197.1674963943. The cubic root of 10221880 is about 217.0252471209.

The spelling of 10221880 in words is "ten million, two hundred twenty-one thousand, eight hundred eighty".