21545055350122 has 64 divisors (see below), whose sum is σ = 34697043722880. Its totient is φ = 9998086348800.

The previous prime is 21545055350089. The next prime is 21545055350123. The reversal of 21545055350122 is 22105355054512.

It is not an unprimeable number, because it can be changed into a prime (21545055350123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 720049722 + ... + 720079642.

It is an arithmetic number, because the mean of its divisors is an integer number (542141308170).

Almost surely, 2^{21545055350122} is an apocalyptic number.

21545055350122 is a deficient number, since it is larger than the sum of its proper divisors (13151988372758).

21545055350122 is a wasteful number, since it uses less digits than its factorization.

21545055350122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30967.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 21545055350122 in words is "twenty-one trillion, five hundred forty-five billion, fifty-five million, three hundred fifty thousand, one hundred twenty-two".