122012210021111 has 8 divisors (see below), whose sum is σ = 128434234273920. Its totient is φ = 115590218667192.

The previous prime is 122012210021047. The next prime is 122012210021129. The reversal of 122012210021111 is 111120012210221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122012210021111 - 2⁶ = 122012210021047 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 122012210021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012210021161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422315 + ... + 15626988.

It is an arithmetic number, because the mean of its divisors is an integer number (16054279284240).

Almost surely, 2^{122012210021111} is an apocalyptic number.

122012210021111 is a deficient number, since it is larger than the sum of its proper divisors (6422024252809).

122012210021111 is a wasteful number, since it uses less digits than its factorization.

122012210021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16449445.

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

Adding to 122012210021111 its reverse (111120012210221), we get a palindrome (233132222231332).

The spelling of 122012210021111 in words is "one hundred twenty-two trillion, twelve billion, two hundred ten million, twenty-one thousand, one hundred eleven".