12021232101012 has 30 divisors (see below), whose sum is σ = 31425875277258. Its totient is φ = 4007077366896.

The previous prime is 12021232100989. The next prime is 12021232101061. The reversal of 12021232101012 is 21010123212021.

12021232101012 is a `hidden beast` number, since 120 + 212 + 321 + 0 + 1 + 0 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7683784417296 + 4337447683716 = 2771964^2 + 2082654^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18551283783 + ... + 18551284430.

Almost surely, 2^{12021232101012} is an apocalyptic number.

12021232101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021232101012 is an abundant number, since it is smaller than the sum of its proper divisors (19404643176246).

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

12021232101012 is a wasteful number, since it uses less digits than its factorization.

12021232101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37102568229 (or 37102568218 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12021232101012 its reverse (21010123212021), we get a palindrome (33031355313033).

The spelling of 12021232101012 in words is "twelve trillion, twenty-one billion, two hundred thirty-two million, one hundred one thousand, twelve".