122020216761 has 4 divisors (see below), whose sum is σ = 162693622352. Its totient is φ = 81346811172.

The previous prime is 122020216741. The next prime is 122020216783. The reversal of 122020216761 is 167612020221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122020216761 - 2¹⁷ = 122020085689 is a prime.

It is a super-2 number, since 2×122020216761² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122020216741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20336702791 + ... + 20336702796.

It is an arithmetic number, because the mean of its divisors is an integer number (40673405588).

Almost surely, 2^122020216761 is an apocalyptic number.

It is an amenable number.

122020216761 is a deficient number, since it is larger than the sum of its proper divisors (40673405591).

122020216761 is an equidigital number, since it uses as much as digits as its factorization.

122020216761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40673405590.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 122020216761 its reverse (167612020221), we get a palindrome (289632236982).

The spelling of 122020216761 in words is "one hundred twenty-two billion, twenty million, two hundred sixteen thousand, seven hundred sixty-one".