121224404202 has 64 divisors (see below), whose sum is σ = 280117398528. Its totient is φ = 34565216000.

The previous prime is 121224404183. The next prime is 121224404227. The reversal of 121224404202 is 202404422121.

It is a happy 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 31 ways as a sum of consecutive naturals, for example, 5521627 + ... + 5543537.

It is an arithmetic number, because the mean of its divisors is an integer number (4376834352).

Almost surely, 2^121224404202 is an apocalyptic number.

121224404202 is an abundant number, since it is smaller than the sum of its proper divisors (158892994326).

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

121224404202 is a wasteful number, since it uses less digits than its factorization.

121224404202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26875.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 121224404202 its reverse (202404422121), we get a palindrome (323628826323).

The spelling of 121224404202 in words is "one hundred twenty-one billion, two hundred twenty-four million, four hundred four thousand, two hundred two".