101122122211111 has 4 divisors (see below), whose sum is σ = 101190866007424. Its totient is φ = 101053378414800.

The previous prime is 101122122211079. The next prime is 101122122211169. The reversal of 101122122211111 is 111112221221101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101122122211111 - 2⁵ = 101122122211079 is a prime.

It is a super-3 number, since 3×101122122211111³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101122122211211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34371895950 + ... + 34371898891.

It is an arithmetic number, because the mean of its divisors is an integer number (25297716501856).

Almost surely, 2^{101122122211111} is an apocalyptic number.

101122122211111 is a deficient number, since it is larger than the sum of its proper divisors (68743796313).

101122122211111 is an equidigital number, since it uses as much as digits as its factorization.

101122122211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68743796312.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 101122122211111 its reverse (111112221221101), we get a palindrome (212234343432212).

The spelling of 101122122211111 in words is "one hundred one trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred eleven thousand, one hundred eleven".