22424056042621 has 4 divisors (see below), whose sum is σ = 22561626938752. Its totient is φ = 22286485146492.

The previous prime is 22424056042573. The next prime is 22424056042639. The reversal of 22424056042621 is 12624065042422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22424056042621 - 2¹⁵ = 22424056009853 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 (22424056042691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68785447821 + ... + 68785448146.

It is an arithmetic number, because the mean of its divisors is an integer number (5640406734688).

Almost surely, 2^{22424056042621} is an apocalyptic number.

It is an amenable number.

22424056042621 is a deficient number, since it is larger than the sum of its proper divisors (137570896131).

22424056042621 is a wasteful number, since it uses less digits than its factorization.

22424056042621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137570896130.

The product of its (nonzero) digits is 368640, while the sum is 40.

The spelling of 22424056042621 in words is "twenty-two trillion, four hundred twenty-four billion, fifty-six million, forty-two thousand, six hundred twenty-one".