121211202224 has 40 divisors (see below), whose sum is σ = 274638017280. Its totient is φ = 50739571008.

The previous prime is 121211202197. The next prime is 121211202227. The reversal of 121211202224 is 422202112121.

It is a happy number.

121211202224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121211202196 and 121211202205.

It is not an unprimeable number, because it can be changed into a prime (121211202227) 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, 12579404 + ... + 12589035.

It is an arithmetic number, because the mean of its divisors is an integer number (6865950432).

Almost surely, 2^121211202224 is an apocalyptic number.

121211202224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121211202224 is an abundant number, since it is smaller than the sum of its proper divisors (153426815056).

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

121211202224 is a wasteful number, since it uses less digits than its factorization.

121211202224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25168497 (or 25168491 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121211202224 its reverse (422202112121), we get a palindrome (543413314345).

The spelling of 121211202224 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred two thousand, two hundred twenty-four".