10231221940 has 48 divisors (see below), whose sum is σ = 21626922240. Its totient is φ = 4065649280.

The previous prime is 10231221929. The next prime is 10231221941. The reversal of 10231221940 is 4912213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231221941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2201259 + ... + 2205901.

It is an arithmetic number, because the mean of its divisors is an integer number (450560880).

Almost surely, 2^10231221940 is an apocalyptic number.

10231221940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10231221940 is an abundant number, since it is smaller than the sum of its proper divisors (11395700300).

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

10231221940 is a wasteful number, since it uses less digits than its factorization.

10231221940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352 (or 5350 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 10231221940 in words is "ten billion, two hundred thirty-one million, two hundred twenty-one thousand, nine hundred forty".