121223332121200 has 120 divisors (see below), whose sum is σ = 306985677465200. Its totient is φ = 45874590382080.

The previous prime is 121223332121179. The next prime is 121223332121209. The reversal of 121223332121200 is 2121233322121.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121223332121209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5309445 + ... + 16451044.

Almost surely, 2^{121223332121200} is an apocalyptic number.

121223332121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121223332121200 is an abundant number, since it is smaller than the sum of its proper divisors (185762345344000).

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

121223332121200 is a wasteful number, since it uses less digits than its factorization.

121223332121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21761259 (or 21761248 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121223332121200 its reverse (2121233322121), we get a palindrome (123344565443321).

The spelling of 121223332121200 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred".