12012222212020 has 24 divisors (see below), whose sum is σ = 25233749335368. Its totient is φ = 4803349324800.

The previous prime is 12012222212017. The next prime is 12012222212051. The reversal of 12012222212020 is 2021222221021.

It can be written as a sum of positive squares in 4 ways, for example, as 1996744215844 + 10015477996176 = 1413062^2 + 3164724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96158521 + ... + 96283360.

It is an arithmetic number, because the mean of its divisors is an integer number (1051406222307).

Almost surely, 2^{12012222212020} is an apocalyptic number.

12012222212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012222212020 is an abundant number, since it is smaller than the sum of its proper divisors (13221527123348).

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

12012222212020 is a wasteful number, since it uses less digits than its factorization.

12012222212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192445011 (or 192445009 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12012222212020 its reverse (2021222221021), we get a palindrome (14033444433041).

Subtracting from 12012222212020 its reverse (2021222221021), we obtain a palindrome (9990999990999).

The spelling of 12012222212020 in words is "twelve trillion, twelve billion, two hundred twenty-two million, two hundred twelve thousand, twenty".