22074626421 has 24 divisors (see below), whose sum is σ = 31997361240. Its totient is φ = 14664900096.

The previous prime is 22074626323. The next prime is 22074626423. The reversal of 22074626421 is 12462647022.

22074626421 is a `hidden beast` number, since 2 + 2 + 0 + 7 + 4 + 6 + 2 + 642 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12488062500 + 9586563921 = 111750^2 + 97911^2 .

It is not a de Polignac number, because 22074626421 - 2¹⁴ = 22074610037 is a prime.

It is a super-2 number, since 2×22074626421² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22074626423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4603201 + ... + 4607993.

It is an arithmetic number, because the mean of its divisors is an integer number (1333223385).

Almost surely, 2^22074626421 is an apocalyptic number.

It is an amenable number.

22074626421 is a deficient number, since it is larger than the sum of its proper divisors (9922734819).

22074626421 is a wasteful number, since it uses less digits than its factorization.

22074626421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485 (or 6482 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 22074626421 in words is "twenty-two billion, seventy-four million, six hundred twenty-six thousand, four hundred twenty-one".