122621371421 has 8 divisors (see below), whose sum is σ = 122821367040. Its totient is φ = 122421538512.

The previous prime is 122621371409. The next prime is 122621371423. The reversal of 122621371421 is 124173126221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122621371421 - 2¹⁰ = 122621370397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122621371423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1515920 + ... + 1594758.

It is an arithmetic number, because the mean of its divisors is an integer number (15352670880).

Almost surely, 2^122621371421 is an apocalyptic number.

It is an amenable number.

122621371421 is a deficient number, since it is larger than the sum of its proper divisors (199995619).

122621371421 is a wasteful number, since it uses less digits than its factorization.

122621371421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81355.

The product of its digits is 8064, while the sum is 32.

Adding to 122621371421 its reverse (124173126221), we get a palindrome (246794497642).

The spelling of 122621371421 in words is "one hundred twenty-two billion, six hundred twenty-one million, three hundred seventy-one thousand, four hundred twenty-one".