212333113020 has 48 divisors (see below), whose sum is σ = 679465963008. Its totient is φ = 48533282880.

The previous prime is 212333112997. The next prime is 212333113043. The reversal of 212333113020 is 20311333212.

It is an interprime number because it is at equal distance from previous prime (212333112997) and next prime (212333113043).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252777096 + ... + 252777935.

It is an arithmetic number, because the mean of its divisors is an integer number (14155540896).

Almost surely, 2^212333113020 is an apocalyptic number.

212333113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212333113020 is an abundant number, since it is smaller than the sum of its proper divisors (467132849988).

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

212333113020 is a wasteful number, since it uses less digits than its factorization.

212333113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505555050 (or 505555048 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212333113020 its reverse (20311333212), we get a palindrome (232644446232).

The spelling of 212333113020 in words is "two hundred twelve billion, three hundred thirty-three million, one hundred thirteen thousand, twenty".