12121233113020 has 96 divisors (see below), whose sum is σ = 25922567280960. Its totient is φ = 4759870832640.

The previous prime is 12121233112973. The next prime is 12121233113053. The reversal of 12121233113020 is 2031133212121.

It is a junction number, because it is equal to n+sod(n) for n = 12121233112982 and 12121233113000.

It is a congruent number.

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, 601211740 + ... + 601231900.

It is an arithmetic number, because the mean of its divisors is an integer number (270026742510).

Almost surely, 2^{12121233113020} is an apocalyptic number.

12121233113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121233113020 is an abundant number, since it is smaller than the sum of its proper divisors (13801334167940).

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

12121233113020 is a wasteful number, since it uses less digits than its factorization.

12121233113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21743 (or 21741 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12121233113020 its reverse (2031133212121), we get a palindrome (14152366325141).

The spelling of 12121233113020 in words is "twelve trillion, one hundred twenty-one billion, two hundred thirty-three million, one hundred thirteen thousand, twenty".