10221621340 has 48 divisors (see below), whose sum is σ = 24994775232. Its totient is φ = 3438429696.

The previous prime is 10221621313. The next prime is 10221621367. The reversal of 10221621340 is 4312612201.

It is an interprime number because it is at equal distance from previous prime (10221621313) and next prime (10221621367).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681369 + ... + 696208.

It is an arithmetic number, because the mean of its divisors is an integer number (520724484).

Almost surely, 2^10221621340 is an apocalyptic number.

10221621340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221621340 is an abundant number, since it is smaller than the sum of its proper divisors (14773153892).

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

10221621340 is a wasteful number, since it uses less digits than its factorization.

10221621340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377646 (or 1377644 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 10221621340 in words is "ten billion, two hundred twenty-one million, six hundred twenty-one thousand, three hundred forty".