12212132020 has 24 divisors (see below), whose sum is σ = 27976884768. Its totient is φ = 4440775200.

The previous prime is 12212132017. The next prime is 12212132041. The reversal of 12212132020 is 2023121221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12212131985 and 12212132003.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27754626 + ... + 27755065.

It is an arithmetic number, because the mean of its divisors is an integer number (1165703532).

Almost surely, 2^12212132020 is an apocalyptic number.

12212132020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212132020 is an abundant number, since it is smaller than the sum of its proper divisors (15764752748).

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

12212132020 is a wasteful number, since it uses less digits than its factorization.

12212132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55509711 (or 55509709 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12212132020 its reverse (2023121221), we get a palindrome (14235253241).

The spelling of 12212132020 in words is "twelve billion, two hundred twelve million, one hundred thirty-two thousand, twenty".