121200112212000 has 192 divisors, whose sum is σ = 399067065581184. Its totient is φ = 32155968230400.

The previous prime is 121200112211977. The next prime is 121200112212013. The reversal of 121200112212000 is 212211002121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23270542 + ... + 27998541.

It is an arithmetic number, because the mean of its divisors is an integer number (2078474299902).

Almost surely, 2^{121200112212000} is an apocalyptic number.

121200112212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200112212000 is an abundant number, since it is smaller than the sum of its proper divisors (277866953369184).

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

121200112212000 is a wasteful number, since it uses less digits than its factorization.

121200112212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51269308 (or 51269290 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121200112212000 its reverse (212211002121), we get a palindrome (121412323214121).

The spelling of 121200112212000 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twelve million, two hundred twelve thousand".