202112210122111 has 16 divisors (see below), whose sum is σ = 215576630080000. Its totient is φ = 188933496463296.

The previous prime is 202112210122049. The next prime is 202112210122129. The reversal of 202112210122111 is 111221012211202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202112210122111 - 2¹¹ = 202112210120063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112210122171) 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, 39428181 + ... + 44258398.

It is an arithmetic number, because the mean of its divisors is an integer number (13473539380000).

Almost surely, 2^{202112210122111} is an apocalyptic number.

202112210122111 is a deficient number, since it is larger than the sum of its proper divisors (13464419957889).

202112210122111 is a wasteful number, since it uses less digits than its factorization.

202112210122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83688286.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202112210122111 its reverse (111221012211202), we get a palindrome (313333222333313).

The spelling of 202112210122111 in words is "two hundred two trillion, one hundred twelve billion, two hundred ten million, one hundred twenty-two thousand, one hundred eleven".