221202022102201 has 16 divisors (see below), whose sum is σ = 260970862547968. Its totient is φ = 183475958846400.

The previous prime is 221202022102151. The next prime is 221202022102261. The reversal of 221202022102201 is 102201220202122.

It is a cyclic number.

It is not a de Polignac number, because 221202022102201 - 2¹¹ = 221202022100153 is a prime.

It is a super-2 number, since 2×221202022102201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221202022102261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22474170 + ... + 30781363.

It is an arithmetic number, because the mean of its divisors is an integer number (16310678909248).

Almost surely, 2^{221202022102201} is an apocalyptic number.

It is an amenable number.

221202022102201 is a deficient number, since it is larger than the sum of its proper divisors (39768840445767).

221202022102201 is a wasteful number, since it uses less digits than its factorization.

221202022102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53274712.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221202022102201 its reverse (102201220202122), we get a palindrome (323403242304323).

The spelling of 221202022102201 in words is "two hundred twenty-one trillion, two hundred two billion, twenty-two million, one hundred two thousand, two hundred one".