121012220011212 has 36 divisors (see below), whose sum is σ = 306240794279056. Its totient is φ = 40291411897440.

The previous prime is 121012220011211. The next prime is 121012220011247. The reversal of 121012220011212 is 212110022210121.

121012220011212 is a `hidden beast` number, since 1 + 210 + 12 + 220 + 0 + 11 + 212 = 666.

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

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 (121012220011211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1916416864 + ... + 1916480007.

Almost surely, 2^{121012220011212} is an apocalyptic number.

121012220011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121012220011212 is an abundant number, since it is smaller than the sum of its proper divisors (185228574267844).

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

121012220011212 is a wasteful number, since it uses less digits than its factorization.

121012220011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832897758 (or 3832897753 counting only the distinct ones).

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

Adding to 121012220011212 its reverse (212110022210121), we get a palindrome (333122242221333).

The spelling of 121012220011212 in words is "one hundred twenty-one trillion, twelve billion, two hundred twenty million, eleven thousand, two hundred twelve".