122101202211111 has 12 divisors (see below), whose sum is σ = 176372560142688. Its totient is φ = 81398882882304.

The previous prime is 122101202211017. The next prime is 122101202211127. The reversal of 122101202211111 is 111112202101221.

It is a happy number.

122101202211111 is a `hidden beast` number, since 1 + 2 + 210 + 120 + 221 + 1 + 111 = 666.

It is not a de Polignac number, because 122101202211111 - 2¹⁸ = 122101201948967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101202211161) 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, 159479535 + ... + 160243328.

It is an arithmetic number, because the mean of its divisors is an integer number (14697713345224).

Almost surely, 2^{122101202211111} is an apocalyptic number.

122101202211111 is a deficient number, since it is larger than the sum of its proper divisors (54271357931577).

122101202211111 is a wasteful number, since it uses less digits than its factorization.

122101202211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319765302 (or 319765299 counting only the distinct ones).

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

Adding to 122101202211111 its reverse (111112202101221), we get a palindrome (233213404312332).

The spelling of 122101202211111 in words is "one hundred twenty-two trillion, one hundred one billion, two hundred two million, two hundred eleven thousand, one hundred eleven".