212013001020 has 96 divisors (see below), whose sum is σ = 595135537920. Its totient is φ = 56394204160.

The previous prime is 212013001009. The next prime is 212013001021. The reversal of 212013001020 is 20100310212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 212013000987 and 212013001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013001021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70411315 + ... + 70414325.

It is an arithmetic number, because the mean of its divisors is an integer number (6199328520).

Almost surely, 2^212013001020 is an apocalyptic number.

212013001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212013001020 is an abundant number, since it is smaller than the sum of its proper divisors (383122536900).

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

212013001020 is a wasteful number, since it uses less digits than its factorization.

212013001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595 (or 5593 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 212013001020 its reverse (20100310212), we get a palindrome (232113311232).

The spelling of 212013001020 in words is "two hundred twelve billion, thirteen million, one thousand, twenty".