121213412022 has 16 divisors (see below), whose sum is σ = 242437727232. Its totient is φ = 40402653480.

The previous prime is 121213411999. The next prime is 121213412039. The reversal of 121213412022 is 220214312121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121213412022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306054 + ... + 579737.

It is an arithmetic number, because the mean of its divisors is an integer number (15152357952).

Almost surely, 2^121213412022 is an apocalyptic number.

121213412022 is an abundant number, since it is smaller than the sum of its proper divisors (121224315210).

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

121213412022 is a wasteful number, since it uses less digits than its factorization.

121213412022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908603.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121213412022 its reverse (220214312121), we get a palindrome (341427724143).

Subtracting 121213412022 from its reverse (220214312121), we obtain a palindrome (99000900099).

The spelling of 121213412022 in words is "one hundred twenty-one billion, two hundred thirteen million, four hundred twelve thousand, twenty-two".