220010121021200 has 30 divisors (see below), whose sum is σ = 528574315754394. Its totient is φ = 88004048408320.

The previous prime is 220010121021191. The next prime is 220010121021221. The reversal of 220010121021200 is 2120121010022.

It can be written as a sum of positive squares in 3 ways, for example, as 16162201010176 + 203847920011024 = 4020224^2 + 14277532^2 .

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 5 ways as a sum of consecutive naturals, for example, 275012650877 + ... + 275012651676.

Almost surely, 2^{220010121021200} is an apocalyptic number.

220010121021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220010121021200 is an abundant number, since it is smaller than the sum of its proper divisors (308564194733194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220010121021200 is a wasteful number, since it uses less digits than its factorization.

220010121021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550025302571 (or 550025302560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220010121021200 its reverse (2120121010022), we get a palindrome (222130242031222).

The spelling of 220010121021200 in words is "two hundred twenty trillion, ten billion, one hundred twenty-one million, twenty-one thousand, two hundred".