220121454052450 has 48 divisors (see below), whose sum is σ = 410074912945440. Its totient is φ = 87909016832000.

The previous prime is 220121454052433. The next prime is 220121454052471. The reversal of 220121454052450 is 54250454121022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2013294285 + ... + 2013403615.

It is an arithmetic number, because the mean of its divisors is an integer number (8543227353030).

Almost surely, 2^{220121454052450} is an apocalyptic number.

220121454052450 is a deficient number, since it is larger than the sum of its proper divisors (189953458892990).

220121454052450 is a wasteful number, since it uses less digits than its factorization.

220121454052450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172803 (or 172798 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 37.

The spelling of 220121454052450 in words is "two hundred twenty trillion, one hundred twenty-one billion, four hundred fifty-four million, fifty-two thousand, four hundred fifty".