121031231023212 has 96 divisors (see below), whose sum is σ = 305581394764800. Its totient is φ = 37145997038592.

The previous prime is 121031231023207. The next prime is 121031231023237. The reversal of 121031231023212 is 212320132130121.

It is a super-2 number, since 2×121031231023212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32692918 + ... + 36206205.

It is an arithmetic number, because the mean of its divisors is an integer number (3183139528800).

Almost surely, 2^{121031231023212} is an apocalyptic number.

121031231023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121031231023212 is an abundant number, since it is smaller than the sum of its proper divisors (184550163741588).

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

121031231023212 is a wasteful number, since it uses less digits than its factorization.

121031231023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68899335 (or 68899333 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121031231023212 its reverse (212320132130121), we get a palindrome (333351363153333).

The spelling of 121031231023212 in words is "one hundred twenty-one trillion, thirty-one billion, two hundred thirty-one million, twenty-three thousand, two hundred twelve".