121212111932 has 48 divisors (see below), whose sum is σ = 219344412672. Its totient is φ = 58573361280.

The previous prime is 121212111931. The next prime is 121212111947. The reversal of 121212111932 is 239111212121.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212111931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17535557 + ... + 17542467.

It is an arithmetic number, because the mean of its divisors is an integer number (4569675264).

Almost surely, 2^121212111932 is an apocalyptic number.

It is an amenable number.

121212111932 is a deficient number, since it is larger than the sum of its proper divisors (98132300740).

121212111932 is a wasteful number, since it uses less digits than its factorization.

121212111932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8018 (or 8016 counting only the distinct ones).

The product of its digits is 432, while the sum is 26.

The spelling of 121212111932 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred eleven thousand, nine hundred thirty-two".