220100121201 has 32 divisors (see below), whose sum is σ = 324640770048. Its totient is φ = 131934147840.

The previous prime is 220100121191. The next prime is 220100121209. The reversal of 220100121201 is 102121001022.

It is not a de Polignac number, because 220100121201 - 2²⁷ = 219965903473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220100121209) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 835620 + ... + 1066986.

It is an arithmetic number, because the mean of its divisors is an integer number (10145024064).

Almost surely, 2^220100121201 is an apocalyptic number.

It is an amenable number.

220100121201 is a deficient number, since it is larger than the sum of its proper divisors (104540648847).

220100121201 is a wasteful number, since it uses less digits than its factorization.

220100121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232221.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220100121201 its reverse (102121001022), we get a palindrome (322221122223).

The spelling of 220100121201 in words is "two hundred twenty billion, one hundred million, one hundred twenty-one thousand, two hundred one".