122621371123 has 4 divisors (see below), whose sum is σ = 122667282208. Its totient is φ = 122575460040.

The previous prime is 122621371091. The next prime is 122621371133. The reversal of 122621371123 is 321173126221.

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 122621371123 - 2⁵ = 122621371091 is a prime.

It is a super-2 number, since 2×122621371123² (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 (122621371133) 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, 22951536 + ... + 22956877.

It is an arithmetic number, because the mean of its divisors is an integer number (30666820552).

Almost surely, 2^122621371123 is an apocalyptic number.

122621371123 is a deficient number, since it is larger than the sum of its proper divisors (45911085).

122621371123 is an equidigital number, since it uses as much as digits as its factorization.

122621371123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45911084.

The product of its digits is 6048, while the sum is 31.

Adding to 122621371123 its reverse (321173126221), we get a palindrome (443794497344).

The spelling of 122621371123 in words is "one hundred twenty-two billion, six hundred twenty-one million, three hundred seventy-one thousand, one hundred twenty-three".