201222211111101 has 12 divisors (see below), whose sum is σ = 290654475764380. Its totient is φ = 134148061897920.

The previous prime is 201222211110997. The next prime is 201222211111133. The reversal of 201222211111101 is 101111112222102.

It is a happy number.

201222211111101 is a `hidden beast` number, since 20 + 1 + 222 + 211 + 111 + 101 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97799718111876 + 103422492999225 = 9889374^2 + 10169685^2 .

It is not a de Polignac number, because 201222211111101 - 2¹⁸ = 201222210848957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222211111601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12509955 + ... + 23641983.

Almost surely, 2^{201222211111101} is an apocalyptic number.

It is an amenable number.

201222211111101 is a deficient number, since it is larger than the sum of its proper divisors (89432264653279).

201222211111101 is a wasteful number, since it uses less digits than its factorization.

201222211111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13140476 (or 13140473 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 201222211111101 its reverse (101111112222102), we get a palindrome (302333323333203).

The spelling of 201222211111101 in words is "two hundred one trillion, two hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, one hundred one".