121213424322 has 64 divisors (see below), whose sum is σ = 278185190400. Its totient is φ = 39082417920.

The previous prime is 121213424261. The next prime is 121213424341. The reversal of 121213424322 is 223424312121.

121213424322 is a `hidden beast` number, since 1 + 2 + 1 + 213 + 424 + 3 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3728554 + ... + 3760922.

It is an arithmetic number, because the mean of its divisors is an integer number (4346643600).

Almost surely, 2^121213424322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121213424322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139092595200).

121213424322 is an abundant number, since it is smaller than the sum of its proper divisors (156971766078).

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

121213424322 is a wasteful number, since it uses less digits than its factorization.

121213424322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34648 (or 34642 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 121213424322 its reverse (223424312121), we get a palindrome (344637736443).

The spelling of 121213424322 in words is "one hundred twenty-one billion, two hundred thirteen million, four hundred twenty-four thousand, three hundred twenty-two".