122311223251421 has 8 divisors (see below), whose sum is σ = 126291139711488. Its totient is φ = 118333456362000.

The previous prime is 122311223251411. The next prime is 122311223251439. The reversal of 122311223251421 is 124152322113221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122311223251421 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 (122311223251411) 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, 537277010 + ... + 537504611.

It is an arithmetic number, because the mean of its divisors is an integer number (15786392463936).

Almost surely, 2^{122311223251421} is an apocalyptic number.

It is an amenable number.

122311223251421 is a deficient number, since it is larger than the sum of its proper divisors (3979916460067).

122311223251421 is a wasteful number, since it uses less digits than its factorization.

122311223251421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074785323.

The product of its digits is 11520, while the sum is 32.

Adding to 122311223251421 its reverse (124152322113221), we get a palindrome (246463545364642).

The spelling of 122311223251421 in words is "one hundred twenty-two trillion, three hundred eleven billion, two hundred twenty-three million, two hundred fifty-one thousand, four hundred twenty-one".