21322554425198 has 8 divisors (see below), whose sum is σ = 34444126379208. Its totient is φ = 9841178965464.

The previous prime is 21322554425177. The next prime is 21322554425281. The reversal of 21322554425198 is 89152445522312.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410049123536 + ... + 410049123587.

It is an arithmetic number, because the mean of its divisors is an integer number (4305515797401).

Almost surely, 2^{21322554425198} is an apocalyptic number.

21322554425198 is a deficient number, since it is larger than the sum of its proper divisors (13121571954010).

21322554425198 is a wasteful number, since it uses less digits than its factorization.

21322554425198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820098247138.

The product of its digits is 6912000, while the sum is 53.

The spelling of 21322554425198 in words is "twenty-one trillion, three hundred twenty-two billion, five hundred fifty-four million, four hundred twenty-five thousand, one hundred ninety-eight".