101122122020111 has 4 divisors (see below), whose sum is σ = 101122572134424. Its totient is φ = 101121671905800.

The previous prime is 101122122020057. The next prime is 101122122020173. The reversal of 101122122020111 is 111020221221101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101122122020111 is a prime.

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 101122122020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101122622020111) 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, 224720000 + ... + 225169541.

It is an arithmetic number, because the mean of its divisors is an integer number (25280643033606).

Almost surely, 2^{101122122020111} is an apocalyptic number.

101122122020111 is a deficient number, since it is larger than the sum of its proper divisors (450114313).

101122122020111 is an equidigital number, since it uses as much as digits as its factorization.

101122122020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450114312.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101122122020111 its reverse (111020221221101), we get a palindrome (212142343241212).

The spelling of 101122122020111 in words is "one hundred one trillion, one hundred twenty-two billion, one hundred twenty-two million, twenty thousand, one hundred eleven".