121321321422 has 16 divisors (see below), whose sum is σ = 277305877632. Its totient is φ = 34663234680.

The previous prime is 121321321411. The next prime is 121321321427. The reversal of 121321321422 is 224123123121.

It is a super-2 number, since 2×121321321422² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121321321392 and 121321321401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321321427) 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, 1444301404 + ... + 1444301487.

It is an arithmetic number, because the mean of its divisors is an integer number (17331617352).

Almost surely, 2^121321321422 is an apocalyptic number.

121321321422 is an abundant number, since it is smaller than the sum of its proper divisors (155984556210).

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

121321321422 is a wasteful number, since it uses less digits than its factorization.

121321321422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888602903.

The product of its digits is 1152, while the sum is 24.

Adding to 121321321422 its reverse (224123123121), we get a palindrome (345444444543).

The spelling of 121321321422 in words is "one hundred twenty-one billion, three hundred twenty-one million, three hundred twenty-one thousand, four hundred twenty-two".