202221112021101 has 48 divisors (see below), whose sum is σ = 323360318661120. Its totient is φ = 121128703111680.

The previous prime is 202221112021081. The next prime is 202221112021109. The reversal of 202221112021101 is 101120211122202.

202221112021101 is a `hidden beast` number, since 20 + 222 + 111 + 202 + 110 + 1 = 666.

It is not a de Polignac number, because 202221112021101 - 2⁶ = 202221112021037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221112021109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54658245 + ... + 58240586.

It is an arithmetic number, because the mean of its divisors is an integer number (6736673305440).

Almost surely, 2^{202221112021101} is an apocalyptic number.

It is an amenable number.

202221112021101 is a deficient number, since it is larger than the sum of its proper divisors (121139206640019).

202221112021101 is a wasteful number, since it uses less digits than its factorization.

202221112021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112899386 (or 112899383 counting only the distinct ones).

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

Adding to 202221112021101 its reverse (101120211122202), we get a palindrome (303341323143303).

The spelling of 202221112021101 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twelve million, twenty-one thousand, one hundred one".