122012210210111 has 4 divisors (see below), whose sum is σ = 131397764841672. Its totient is φ = 112626655578552.

The previous prime is 122012210210083. The next prime is 122012210210159. The reversal of 122012210210111 is 111012012210221.

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-122012210210111 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 122012210210111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012210218111) 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, 4692777315761 + ... + 4692777315786.

It is an arithmetic number, because the mean of its divisors is an integer number (32849441210418).

Almost surely, 2^{122012210210111} is an apocalyptic number.

122012210210111 is a deficient number, since it is larger than the sum of its proper divisors (9385554631561).

122012210210111 is an equidigital number, since it uses as much as digits as its factorization.

122012210210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385554631560.

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

Adding to 122012210210111 its reverse (111012012210221), we get a palindrome (233024222420332).

The spelling of 122012210210111 in words is "one hundred twenty-two trillion, twelve billion, two hundred ten million, two hundred ten thousand, one hundred eleven".