121212000023202 has 48 divisors (see below), whose sum is σ = 286529549454720. Its totient is φ = 36727260573600.

The previous prime is 121212000023189. The next prime is 121212000023203. The reversal of 121212000023202 is 202320000212121.

121212000023202 is a `hidden beast` number, since 121 + 21 + 200 + 0 + 0 + 2 + 320 + 2 = 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 (121212000023203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28405674 + ... + 32392997.

It is an arithmetic number, because the mean of its divisors is an integer number (5969365613640).

Almost surely, 2^{121212000023202} is an apocalyptic number.

121212000023202 is an abundant number, since it is smaller than the sum of its proper divisors (165317549431518).

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

121212000023202 is a wasteful number, since it uses less digits than its factorization.

121212000023202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60808759 (or 60808756 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121212000023202 its reverse (202320000212121), we get a palindrome (323532000235323).

The spelling of 121212000023202 in words is "one hundred twenty-one trillion, two hundred twelve billion, twenty-three thousand, two hundred two".