112121211210210 has 32 divisors (see below), whose sum is σ = 298989896561280. Its totient is φ = 29898989655984.

The previous prime is 112121211210199. The next prime is 112121211210221. The reversal of 112121211210210 is 12012112121211.

It is a happy number.

112121211210210 is a `hidden beast` number, since 1 + 1 + 21 + 212 + 11 + 210 + 210 = 666.

It is an interprime number because it is at equal distance from previous prime (112121211210199) and next prime (112121211210221).

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 15 ways as a sum of consecutive naturals, for example, 207631872342 + ... + 207631872881.

It is an arithmetic number, because the mean of its divisors is an integer number (9343434267540).

Almost surely, 2^{112121211210210} is an apocalyptic number.

112121211210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112121211210210 is an abundant number, since it is smaller than the sum of its proper divisors (186868685351070).

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

112121211210210 is a wasteful number, since it uses less digits than its factorization.

112121211210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415263745239 (or 415263745233 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 112121211210210 its reverse (12012112121211), we get a palindrome (124133323331421).

The spelling of 112121211210210 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, two hundred ten".