101210112122111 has 4 divisors (see below), whose sum is σ = 107163648129312. Its totient is φ = 95256576114912.

The previous prime is 101210112122069. The next prime is 101210112122117. The reversal of 101210112122111 is 111221211012101.

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 101210112122111 - 2¹⁴ = 101210112105727 is a prime.

It is a super-3 number, since 3×101210112122111³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 5953536007183 = 101210112122111 / (1 + 0 + 1 + 2 + 1 + 0 + 1 + 1 + 2 + 1 + 2 + 2 + 1 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101210112122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210112122117) 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, 2976768003575 + ... + 2976768003608.

It is an arithmetic number, because the mean of its divisors is an integer number (26790912032328).

Almost surely, 2^{101210112122111} is an apocalyptic number.

101210112122111 is a deficient number, since it is larger than the sum of its proper divisors (5953536007201).

101210112122111 is an equidigital number, since it uses as much as digits as its factorization.

101210112122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5953536007200.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 101210112122111 its reverse (111221211012101), we get a palindrome (212431323134212).

The spelling of 101210112122111 in words is "one hundred one trillion, two hundred ten billion, one hundred twelve million, one hundred twenty-two thousand, one hundred eleven".