121212122021092 has 24 divisors (see below), whose sum is σ = 213699012581600. Its totient is φ = 60155472496896.

The previous prime is 121212122021069. The next prime is 121212122021093. The reversal of 121212122021092 is 290120221212121.

It is a self number, because there is not a number n which added to its sum of digits gives 121212122021092.

It is not an unprimeable number, because it can be changed into a prime (121212122021093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24103818 + ... + 28695265.

Almost surely, 2^{121212122021092} is an apocalyptic number.

It is an amenable number.

121212122021092 is a deficient number, since it is larger than the sum of its proper divisors (92486890560508).

121212122021092 is a wasteful number, since it uses less digits than its factorization.

121212122021092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52803355 (or 52803353 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 121212122021092 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred twenty-two million, twenty-one thousand, ninety-two".