10221513044 has 6 divisors (see below), whose sum is σ = 17887647834. Its totient is φ = 5110756520.

The previous prime is 10221513023. The next prime is 10221513079. The reversal of 10221513044 is 44031512201.

It can be written as a sum of positive squares in only one way, i.e., 9261752644 + 959760400 = 96238^2 + 30980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277689127 + ... + 1277689134.

It is an arithmetic number, because the mean of its divisors is an integer number (2981274639).

Almost surely, 2^10221513044 is an apocalyptic number.

It is an amenable number.

10221513044 is a deficient number, since it is larger than the sum of its proper divisors (7666134790).

10221513044 is a wasteful number, since it uses less digits than its factorization.

10221513044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555378265 (or 2555378263 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 10221513044 in words is "ten billion, two hundred twenty-one million, five hundred thirteen thousand, forty-four".