121022111201200 has 360 divisors, whose sum is σ = 325996598507328. Its totient is φ = 43127884800000.

The previous prime is 121022111201059. The next prime is 121022111201207. The reversal of 121022111201200 is 2102111220121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (121022111201207) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2259914425 + ... + 2259967975.

Almost surely, 2^{121022111201200} is an apocalyptic number.

121022111201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121022111201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162998299253664).

121022111201200 is an abundant number, since it is smaller than the sum of its proper divisors (204974487306128).

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

121022111201200 is a wasteful number, since it uses less digits than its factorization.

121022111201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54525 (or 54503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121022111201200 its reverse (2102111220121), we get a palindrome (123124222421321).

It can be divided in two parts, 1210221 and 11201200, that added together give a palindrome (12411421).

The spelling of 121022111201200 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred eleven million, two hundred one thousand, two hundred".