12210210021020 has 72 divisors (see below), whose sum is σ = 28371046339104. Its totient is φ = 4410671760000.

The previous prime is 12210210021019. The next prime is 12210210021089. The reversal of 12210210021020 is 2012001201221.

It is a junction number, because it is equal to n+sod(n) for n = 12210210020986 and 12210210021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16341671 + ... + 17072510.

Almost surely, 2^{12210210021020} is an apocalyptic number.

12210210021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210210021020 is an abundant number, since it is smaller than the sum of its proper divisors (16160836318084).

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

12210210021020 is a wasteful number, since it uses less digits than its factorization.

12210210021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33414363 (or 33414350 counting only the distinct ones).

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

Adding to 12210210021020 its reverse (2012001201221), we get a palindrome (14222211222241).

The spelling of 12210210021020 in words is "twelve trillion, two hundred ten billion, two hundred ten million, twenty-one thousand, twenty".