121223244 has 24 divisors (see below), whose sum is σ = 283064320. Its totient is φ = 40377744.

The previous prime is 121223239. The next prime is 121223257. The reversal of 121223244 is 442322121.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 121223244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18237 + ... + 23979.

Almost surely, 2^121223244 is an apocalyptic number.

It is an amenable number.

121223244 is an abundant number, since it is smaller than the sum of its proper divisors (161841076).

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

121223244 is a wasteful number, since it uses less digits than its factorization.

121223244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7509 (or 7507 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 121223244 is about 11010.1427783658. The cubic root of 121223244 is about 494.9127404599.

Adding to 121223244 its reverse (442322121), we get a palindrome (563545365).

The spelling of 121223244 in words is "one hundred twenty-one million, two hundred twenty-three thousand, two hundred forty-four".