121422412321 has 16 divisors (see below), whose sum is σ = 139660502400. Its totient is φ = 103408305408.

The previous prime is 121422412313. The next prime is 121422412361. The reversal of 121422412321 is 123214224121.

It is a cyclic number.

It is not a de Polignac number, because 121422412321 - 2³ = 121422412313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121422412361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1479945 + ... + 1559833.

It is an arithmetic number, because the mean of its divisors is an integer number (8728781400).

Almost surely, 2^121422412321 is an apocalyptic number.

It is an amenable number.

121422412321 is a deficient number, since it is larger than the sum of its proper divisors (18238090079).

121422412321 is a wasteful number, since it uses less digits than its factorization.

121422412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81288.

The product of its digits is 1536, while the sum is 25.

Adding to 121422412321 its reverse (123214224121), we get a palindrome (244636636442).

The spelling of 121422412321 in words is "one hundred twenty-one billion, four hundred twenty-two million, four hundred twelve thousand, three hundred twenty-one".