22043555421 has 8 divisors (see below), whose sum is σ = 29873233824. Its totient is φ = 14454790320.

The previous prime is 22043555411. The next prime is 22043555431. The reversal of 22043555421 is 12455534022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22043555411) and next prime (22043555431).

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

It is not a de Polignac number, because 22043555421 - 2⁶ = 22043555357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043555411) 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, 60228111 + ... + 60228476.

It is an arithmetic number, because the mean of its divisors is an integer number (3734154228).

Almost surely, 2^22043555421 is an apocalyptic number.

It is an amenable number.

22043555421 is a deficient number, since it is larger than the sum of its proper divisors (7829678403).

22043555421 is a wasteful number, since it uses less digits than its factorization.

22043555421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120456651.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 22043555421 in words is "twenty-two billion, forty-three million, five hundred fifty-five thousand, four hundred twenty-one".