122110110216551 has 4 divisors (see below), whose sum is σ = 122110149825600. Its totient is φ = 122110070607504.

The previous prime is 122110110216533. The next prime is 122110110216559. The reversal of 122110110216551 is 155612011011221.

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 122110110216551 - 2²⁶ = 122110043107687 is a prime.

It is a super-2 number, since 2×122110110216551² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122110110216559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14750231 + ... + 21489288.

It is an arithmetic number, because the mean of its divisors is an integer number (30527537456400).

Almost surely, 2^{122110110216551} is an apocalyptic number.

122110110216551 is a deficient number, since it is larger than the sum of its proper divisors (39609049).

122110110216551 is an equidigital number, since it uses as much as digits as its factorization.

122110110216551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39609048.

The product of its (nonzero) digits is 1200, while the sum is 29.

Adding to 122110110216551 its reverse (155612011011221), we get a palindrome (277722121227772).

The spelling of 122110110216551 in words is "one hundred twenty-two trillion, one hundred ten billion, one hundred ten million, two hundred sixteen thousand, five hundred fifty-one".