121010112211212 has 108 divisors (see below), whose sum is σ = 359288364380400. Its totient is φ = 33639876657792.

The previous prime is 121010112211211. The next prime is 121010112211217. The reversal of 121010112211212 is 212112211010121.

It is a happy number.

121010112211212 is a `hidden beast` number, since 1 + 210 + 10 + 11 + 221 + 1 + 212 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (121010112211211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 175038087 + ... + 175728062.

Almost surely, 2^{121010112211212} is an apocalyptic number.

121010112211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121010112211212 is an abundant number, since it is smaller than the sum of its proper divisors (238278252169188).

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

121010112211212 is a wasteful number, since it uses less digits than its factorization.

121010112211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350766240 (or 350766198 counting only the distinct ones).

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

Adding to 121010112211212 its reverse (212112211010121), we get a palindrome (333122323221333).

The spelling of 121010112211212 in words is "one hundred twenty-one trillion, ten billion, one hundred twelve million, two hundred eleven thousand, two hundred twelve".