121012112011212 has 36 divisors (see below), whose sum is σ = 306552400903840. Its totient is φ = 40250248913952.

The previous prime is 121012112011171. The next prime is 121012112011213. The reversal of 121012112011212 is 212110211210121.

It is a happy number.

121012112011212 is a `hidden beast` number, since 1 + 210 + 1 + 211 + 20 + 11 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×121012112011212² (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 not an unprimeable number, because it can be changed into a prime (121012112011213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3630056287 + ... + 3630089622.

Almost surely, 2^{121012112011212} is an apocalyptic number.

121012112011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121012112011212 is an abundant number, since it is smaller than the sum of its proper divisors (185540288892628).

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

121012112011212 is a wasteful number, since it uses less digits than its factorization.

121012112011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260146382 (or 7260146377 counting only the distinct ones).

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

Adding to 121012112011212 its reverse (212110211210121), we get a palindrome (333122323221333).

The spelling of 121012112011212 in words is "one hundred twenty-one trillion, twelve billion, one hundred twelve million, eleven thousand, two hundred twelve".