122535104221 has 4 divisors (see below), whose sum is σ = 127862717472. Its totient is φ = 117207490972.

The previous prime is 122535104191. The next prime is 122535104227. The reversal of 122535104221 is 122401535221.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 122535104221 - 2²⁹ = 121998233309 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 122535104221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122535104227) 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, 2663806591 + ... + 2663806636.

It is an arithmetic number, because the mean of its divisors is an integer number (31965679368).

Almost surely, 2^122535104221 is an apocalyptic number.

It is an amenable number.

122535104221 is a deficient number, since it is larger than the sum of its proper divisors (5327613251).

122535104221 is an equidigital number, since it uses as much as digits as its factorization.

122535104221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327613250.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 122535104221 its reverse (122401535221), we get a palindrome (244936639442).

The spelling of 122535104221 in words is "one hundred twenty-two billion, five hundred thirty-five million, one hundred four thousand, two hundred twenty-one".