213001210020 has 48 divisors (see below), whose sum is σ = 612522404928. Its totient is φ = 55265178240.

The previous prime is 213001210013. The next prime is 213001210043. The reversal of 213001210020 is 20012100312.

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 = 213001209978 and 213001210005.

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, 47971026 + ... + 47975465.

It is an arithmetic number, because the mean of its divisors is an integer number (12760883436).

Almost surely, 2^213001210020 is an apocalyptic number.

213001210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213001210020 is an abundant number, since it is smaller than the sum of its proper divisors (399521194908).

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

213001210020 is a wasteful number, since it uses less digits than its factorization.

213001210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95946540 (or 95946538 counting only the distinct ones).

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

Adding to 213001210020 its reverse (20012100312), we get a palindrome (233013310332).

The spelling of 213001210020 in words is "two hundred thirteen billion, one million, two hundred ten thousand, twenty".