122321215123420 has 48 divisors (see below), whose sum is σ = 258589375738848. Its totient is φ = 48602898144000.

The previous prime is 122321215123417. The next prime is 122321215123441. The reversal of 122321215123420 is 24321512123221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30790779 + ... + 34535698.

It is an arithmetic number, because the mean of its divisors is an integer number (5387278661226).

Almost surely, 2^{122321215123420} is an apocalyptic number.

122321215123420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122321215123420 is an abundant number, since it is smaller than the sum of its proper divisors (136268160615428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122321215123420 is a wasteful number, since it uses less digits than its factorization.

122321215123420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65327110 (or 65327108 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 122321215123420 its reverse (24321512123221), we get a palindrome (146642727246641).

The spelling of 122321215123420 in words is "one hundred twenty-two trillion, three hundred twenty-one billion, two hundred fifteen million, one hundred twenty-three thousand, four hundred twenty".