22440511513421 has 64 divisors (see below), whose sum is σ = 24086588878848. Its totient is φ = 20861516003328.

The previous prime is 22440511513393. The next prime is 22440511513423. The reversal of 22440511513421 is 12431511504422.

It is a cyclic number.

It is not a de Polignac number, because 22440511513421 - 2³⁴ = 22423331644237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440511513423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33343998941 + ... + 33343999613.

It is an arithmetic number, because the mean of its divisors is an integer number (376352951232).

Almost surely, 2^{22440511513421} is an apocalyptic number.

It is an amenable number.

22440511513421 is a deficient number, since it is larger than the sum of its proper divisors (1646077365427).

22440511513421 is a wasteful number, since it uses less digits than its factorization.

22440511513421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 22440511513421 in words is "twenty-two trillion, four hundred forty billion, five hundred eleven million, five hundred thirteen thousand, four hundred twenty-one".