12212102021020 has 48 divisors (see below), whose sum is σ = 28100061537408. Its totient is φ = 4421201514560.

The previous prime is 12212102021011. The next prime is 12212102021059. The reversal of 12212102021020 is 2012020121221.

It is a happy number.

12212102021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12212102020985 and 12212102021003.

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, 122217802 + ... + 122317681.

It is an arithmetic number, because the mean of its divisors is an integer number (585417948696).

Almost surely, 2^{12212102021020} is an apocalyptic number.

12212102021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212102021020 is an abundant number, since it is smaller than the sum of its proper divisors (15887959516388).

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

12212102021020 is a wasteful number, since it uses less digits than its factorization.

12212102021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244535730 (or 244535728 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12212102021020 its reverse (2012020121221), we get a palindrome (14224122142241).

The spelling of 12212102021020 in words is "twelve trillion, two hundred twelve billion, one hundred two million, twenty-one thousand, twenty".