12212100012020 has 48 divisors (see below), whose sum is σ = 26030453694336. Its totient is φ = 4811624496000.

The previous prime is 12212100012019. The next prime is 12212100012083. The reversal of 12212100012020 is 2021000121221.

It is a junction number, because it is equal to n+sod(n) for n = 12212100011986 and 12212100012004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392151 + ... + 5490590.

It is an arithmetic number, because the mean of its divisors is an integer number (542301118632).

Almost surely, 2^{12212100012020} is an apocalyptic number.

12212100012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212100012020 is an abundant number, since it is smaller than the sum of its proper divisors (13818353682316).

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

12212100012020 is a wasteful number, since it uses less digits than its factorization.

12212100012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883912 (or 7883910 counting only the distinct ones).

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

Adding to 12212100012020 its reverse (2021000121221), we get a palindrome (14233100133241).

The spelling of 12212100012020 in words is "twelve trillion, two hundred twelve billion, one hundred million, twelve thousand, twenty".