12010021021220 has 96 divisors (see below), whose sum is σ = 25587612288000. Its totient is φ = 4734638720000.

The previous prime is 12010021021177. The next prime is 12010021021223. The reversal of 12010021021220 is 2212012001021.

It is a junction number, because it is equal to n+sod(n) for n = 12010021021195 and 12010021021204.

It is not an unprimeable number, because it can be changed into a prime (12010021021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2244441545 + ... + 2244446895.

It is an arithmetic number, because the mean of its divisors is an integer number (266537628000).

Almost surely, 2^{12010021021220} is an apocalyptic number.

12010021021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010021021220 is an abundant number, since it is smaller than the sum of its proper divisors (13577591266780).

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

12010021021220 is a wasteful number, since it uses less digits than its factorization.

12010021021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10349 (or 10347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12010021021220 its reverse (2212012001021), we get a palindrome (14222033022241).

It can be divided in two parts, 1201002 and 1021220, that added together give a palindrome (2222222).

The spelling of 12010021021220 in words is "twelve trillion, ten billion, twenty-one million, twenty-one thousand, two hundred twenty".