220121200201100 has 36 divisors (see below), whose sum is σ = 521086913933208. Its totient is φ = 80044072800000.

The previous prime is 220121200201081. The next prime is 220121200201139. The reversal of 220121200201100 is 1102002121022.

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 11 ways as a sum of consecutive naturals, for example, 100055089901 + ... + 100055092100.

Almost surely, 2^{220121200201100} is an apocalyptic number.

220121200201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220121200201100 is an abundant number, since it is smaller than the sum of its proper divisors (300965713732108).

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

220121200201100 is a wasteful number, since it uses less digits than its factorization.

220121200201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200110182026 (or 200110182019 counting only the distinct ones).

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

Adding to 220121200201100 its reverse (1102002121022), we get a palindrome (221223202322122).

The spelling of 220121200201100 in words is "two hundred twenty trillion, one hundred twenty-one billion, two hundred million, two hundred one thousand, one hundred".