122012100220111 has 4 divisors (see below), whose sum is σ = 128433789705400. Its totient is φ = 115590410734824.

The previous prime is 122012100220081. The next prime is 122012100220151. The reversal of 122012100220111 is 111022001210221.

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 122012100220111 - 2⁷ = 122012100219983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012100220151) 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, 3210844742616 + ... + 3210844742653.

It is an arithmetic number, because the mean of its divisors is an integer number (32108447426350).

Almost surely, 2^{122012100220111} is an apocalyptic number.

122012100220111 is a deficient number, since it is larger than the sum of its proper divisors (6421689485289).

122012100220111 is an equidigital number, since it uses as much as digits as its factorization.

122012100220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421689485288.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122012100220111 its reverse (111022001210221), we get a palindrome (233034101430332).

The spelling of 122012100220111 in words is "one hundred twenty-two trillion, twelve billion, one hundred million, two hundred twenty thousand, one hundred eleven".