21355450322 has 16 divisors (see below), whose sum is σ = 32840210592. Its totient is φ = 10409122080.

The previous prime is 21355450313. The next prime is 21355450339. The reversal of 21355450322 is 22305455312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3713 + ... + 206699.

It is an arithmetic number, because the mean of its divisors is an integer number (2052513162).

Almost surely, 2^21355450322 is an apocalyptic number.

21355450322 is a deficient number, since it is larger than the sum of its proper divisors (11484760270).

21355450322 is a wasteful number, since it uses less digits than its factorization.

21355450322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204313.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 21355450322 in words is "twenty-one billion, three hundred fifty-five million, four hundred fifty thousand, three hundred twenty-two".