220201202121 has 8 divisors (see below), whose sum is σ = 294861696480. Its totient is φ = 146170754592.

The previous prime is 220201202101. The next prime is 220201202149. The reversal of 220201202121 is 121202102022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220201202121 - 2³⁰ = 219127460297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220201202121.

It is not an unprimeable number, because it can be changed into a prime (220201202101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 157510891 + ... + 157512288.

It is an arithmetic number, because the mean of its divisors is an integer number (36857712060).

Almost surely, 2^220201202121 is an apocalyptic number.

It is an amenable number.

220201202121 is a deficient number, since it is larger than the sum of its proper divisors (74660494359).

220201202121 is a wasteful number, since it uses less digits than its factorization.

220201202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315023415.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220201202121 its reverse (121202102022), we get a palindrome (341403304143).

The spelling of 220201202121 in words is "two hundred twenty billion, two hundred one million, two hundred two thousand, one hundred twenty-one".