122542613101 has 4 divisors (see below), whose sum is σ = 122543439804. Its totient is φ = 122541786400.

The previous prime is 122542613069. The next prime is 122542613111. The reversal of 122542613101 is 101316245221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 101316245221 = 19 ⋅5332433959.

It can be written as a sum of positive squares in 2 ways, for example, as 33813693225 + 88728919876 = 183885^2 + 297874^2 .

It is a cyclic number.

It is not a de Polignac number, because 122542613101 - 2⁵ = 122542613069 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 122542613101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122542613111) 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, 123040 + ... + 510121.

It is an arithmetic number, because the mean of its divisors is an integer number (30635859951).

Almost surely, 2^122542613101 is an apocalyptic number.

It is an amenable number.

122542613101 is a deficient number, since it is larger than the sum of its proper divisors (826703).

122542613101 is an equidigital number, since it uses as much as digits as its factorization.

122542613101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826702.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 122542613101 its reverse (101316245221), we get a palindrome (223858858322).

The spelling of 122542613101 in words is "one hundred twenty-two billion, five hundred forty-two million, six hundred thirteen thousand, one hundred one".