201121122022011 has 6 divisors (see below), whose sum is σ = 290508287365140. Its totient is φ = 134080748014668.

The previous prime is 201121122021961. The next prime is 201121122022057. The reversal of 201121122022011 is 110220221121102.

201121122022011 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 211 + 220 + 220 + 11 = 666.

It is not a de Polignac number, because 201121122022011 - 2²⁶ = 201121054913147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201121122022811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11173395667881 + ... + 11173395667898.

It is an arithmetic number, because the mean of its divisors is an integer number (48418047894190).

Almost surely, 2^{201121122022011} is an apocalyptic number.

201121122022011 is a deficient number, since it is larger than the sum of its proper divisors (89387165343129).

201121122022011 is a wasteful number, since it uses less digits than its factorization.

201121122022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346791335785 (or 22346791335782 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201121122022011 its reverse (110220221121102), we get a palindrome (311341343143113).

Subtracting from 201121122022011 its reverse (110220221121102), we obtain a palindrome (90900900900909).

The spelling of 201121122022011 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twenty-two million, twenty-two thousand, eleven".