121102112212200 has 216 divisors, whose sum is σ = 473101466267430. Its totient is φ = 27680482771200.

The previous prime is 121102112212199. The next prime is 121102112212297. The reversal of 121102112212200 is 2212211201121.

121102112212200 is a `hidden beast` number, since 1 + 2 + 1 + 10 + 211 + 221 + 220 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 81471889287684 + 39630222924516 = 9026178^2 + 6295254^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 686431711 + ... + 686608110.

Almost surely, 2^{121102112212200} is an apocalyptic number.

121102112212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102112212200 is an abundant number, since it is smaller than the sum of its proper divisors (351999354055230).

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

121102112212200 is a wasteful number, since it uses less digits than its factorization.

121102112212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373039857 (or 1373039838 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121102112212200 its reverse (2212211201121), we get a palindrome (123314323413321).

The spelling of 121102112212200 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred twelve million, two hundred twelve thousand, two hundred".