22443555534421 has 8 divisors (see below), whose sum is σ = 25649917328000. Its totient is φ = 19237228634448.

The previous prime is 22443555534341. The next prime is 22443555534467. The reversal of 22443555534421 is 12443555534422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22443555534421 - 2²³ = 22443547145813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22443555514421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7330281 + ... + 9930766.

It is an arithmetic number, because the mean of its divisors is an integer number (3206239666000).

Almost surely, 2^{22443555534421} is an apocalyptic number.

It is an amenable number.

22443555534421 is a deficient number, since it is larger than the sum of its proper divisors (3206361793579).

22443555534421 is a wasteful number, since it uses less digits than its factorization.

22443555534421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446803.

The product of its digits is 11520000, while the sum is 49.

Subtracting from 22443555534421 its reverse (12443555534422), we obtain a palindrome (9999999999999).

The spelling of 22443555534421 in words is "twenty-two trillion, four hundred forty-three billion, five hundred fifty-five million, five hundred thirty-four thousand, four hundred twenty-one".