210101121212112 has 160 divisors (see below), whose sum is σ = 655888159637760. Its totient is φ = 64006434316800.

The previous prime is 210101121212111. The next prime is 210101121212119. The reversal of 210101121212112 is 211212121101012.

It is a happy number.

210101121212112 is a `hidden beast` number, since 210 + 10 + 1 + 121 + 212 + 112 = 666.

It is a super-2 number, since 2×210101121212112² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101121212111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184636588 + ... + 185771019.

It is an arithmetic number, because the mean of its divisors is an integer number (4099300997736).

Almost surely, 2^{210101121212112} is an apocalyptic number.

It is an amenable number.

210101121212112 is an abundant number, since it is smaller than the sum of its proper divisors (445787038425648).

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

210101121212112 is a wasteful number, since it uses less digits than its factorization.

210101121212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370407738 (or 370407726 counting only the distinct ones).

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

Adding to 210101121212112 its reverse (211212121101012), we get a palindrome (421313242313124).

The spelling of 210101121212112 in words is "two hundred ten trillion, one hundred one billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twelve".