212012221303020 has 48 divisors (see below), whose sum is σ = 593635391371008. Its totient is φ = 56536480754880.

The previous prime is 212012221302991. The next prime is 212012221303021. The reversal of 212012221303020 is 20303122210212.

It is a super-2 number, since 2×212012221303020² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212012221303021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29788155 + ... + 36212685.

It is an arithmetic number, because the mean of its divisors is an integer number (12367403986896).

Almost surely, 2^{212012221303020} is an apocalyptic number.

212012221303020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012221303020 is an abundant number, since it is smaller than the sum of its proper divisors (381623170067988).

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

212012221303020 is a wasteful number, since it uses less digits than its factorization.

212012221303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6974550 (or 6974548 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212012221303020 its reverse (20303122210212), we get a palindrome (232315343513232).

The spelling of 212012221303020 in words is "two hundred twelve trillion, twelve billion, two hundred twenty-one million, three hundred three thousand, twenty".