212202112021020 has 96 divisors (see below), whose sum is σ = 720201107485440. Its totient is φ = 51442936246080.

The previous prime is 212202112020979. The next prime is 212202112021043. The reversal of 212202112021020 is 20120211202212.

It is a happy number.

212202112021020 is a `hidden beast` number, since 2 + 1 + 220 + 211 + 2 + 0 + 210 + 20 = 666.

212202112021020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212202112021020³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212202112020984 and 212202112021002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17862124702 + ... + 17862136581.

It is an arithmetic number, because the mean of its divisors is an integer number (7502094869640).

Almost surely, 2^{212202112021020} is an apocalyptic number.

212202112021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212202112021020 is an abundant number, since it is smaller than the sum of its proper divisors (507998995464420).

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

212202112021020 is a wasteful number, since it uses less digits than its factorization.

212202112021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35724261312 (or 35724261304 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212202112021020 its reverse (20120211202212), we get a palindrome (232322323223232).

The spelling of 212202112021020 in words is "two hundred twelve trillion, two hundred two billion, one hundred twelve million, twenty-one thousand, twenty".