121422363451 has 4 divisors (see below), whose sum is σ = 121704086304. Its totient is φ = 121140640600.

The previous prime is 121422363407. The next prime is 121422363467. The reversal of 121422363451 is 154363224121.

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 121422363451 - 2⁷ = 121422363323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121422363151) 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, 140860780 + ... + 140861641.

It is an arithmetic number, because the mean of its divisors is an integer number (30426021576).

Almost surely, 2^121422363451 is an apocalyptic number.

121422363451 is a deficient number, since it is larger than the sum of its proper divisors (281722853).

121422363451 is an equidigital number, since it uses as much as digits as its factorization.

121422363451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281722852.

The product of its digits is 34560, while the sum is 34.

Adding to 121422363451 its reverse (154363224121), we get a palindrome (275785587572).

The spelling of 121422363451 in words is "one hundred twenty-one billion, four hundred twenty-two million, three hundred sixty-three thousand, four hundred fifty-one".