212303120021020 has 48 divisors (see below), whose sum is σ = 509534479758528. Its totient is φ = 72788642334720.

The previous prime is 212303120020997. The next prime is 212303120021051. The reversal of 212303120021020 is 20120021303212.

It is a super-2 number, since 2×212303120021020² (a number of 29 digits) contains 22 as substring.

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, 129141 + ... + 20606380.

It is an arithmetic number, because the mean of its divisors is an integer number (10615301661636).

Almost surely, 2^{212303120021020} is an apocalyptic number.

212303120021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212303120021020 is an abundant number, since it is smaller than the sum of its proper divisors (297231359737508).

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

212303120021020 is a wasteful number, since it uses less digits than its factorization.

212303120021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20808670 (or 20808668 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212303120021020 its reverse (20120021303212), we get a palindrome (232423141324232).

The spelling of 212303120021020 in words is "two hundred twelve trillion, three hundred three billion, one hundred twenty million, twenty-one thousand, twenty".