121023231212 has 48 divisors (see below), whose sum is σ = 240176761440. Its totient is φ = 52897162752.

The previous prime is 121023231211. The next prime is 121023231239. The reversal of 121023231212 is 212132320121.

121023231212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×121023231212³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121023231211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2781368 + ... + 2824544.

It is an arithmetic number, because the mean of its divisors is an integer number (5003682530).

Almost surely, 2^121023231212 is an apocalyptic number.

It is an amenable number.

121023231212 is a deficient number, since it is larger than the sum of its proper divisors (119153530228).

121023231212 is a wasteful number, since it uses less digits than its factorization.

121023231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46050 (or 46048 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121023231212 its reverse (212132320121), we get a palindrome (333155551333).

The spelling of 121023231212 in words is "one hundred twenty-one billion, twenty-three million, two hundred thirty-one thousand, two hundred twelve".