221101202201 has 32 divisors (see below), whose sum is σ = 254769408000. Its totient is φ = 189768458880.

The previous prime is 221101202183. The next prime is 221101202261. The reversal of 221101202201 is 102202101122.

It is not a de Polignac number, because 221101202201 - 2¹⁴ = 221101185817 is a prime.

It is a super-2 number, since 2×221101202201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221101202261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93015725 + ... + 93018101.

It is an arithmetic number, because the mean of its divisors is an integer number (7961544000).

Almost surely, 2^221101202201 is an apocalyptic number.

It is an amenable number.

221101202201 is a deficient number, since it is larger than the sum of its proper divisors (33668205799).

221101202201 is a wasteful number, since it uses less digits than its factorization.

221101202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3749.

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

Adding to 221101202201 its reverse (102202101122), we get a palindrome (323303303323).

The spelling of 221101202201 in words is "two hundred twenty-one billion, one hundred one million, two hundred two thousand, two hundred one".