213000020012 has 48 divisors (see below), whose sum is σ = 403962750240. Its totient is φ = 98267697216.

The previous prime is 213000019987. The next prime is 213000020053. The reversal of 213000020012 is 210020000312.

It is a happy number.

It is a super-2 number, since 2×213000020012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213000019975 and 213000020002.

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, 40747343 + ... + 40752569.

It is an arithmetic number, because the mean of its divisors is an integer number (8415890630).

Almost surely, 2^213000020012 is an apocalyptic number.

It is an amenable number.

213000020012 is a deficient number, since it is larger than the sum of its proper divisors (190962730228).

213000020012 is a wasteful number, since it uses less digits than its factorization.

213000020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9907 (or 9879 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 213000020012 its reverse (210020000312), we get a palindrome (423020020324).

The spelling of 213000020012 in words is "two hundred thirteen billion, twenty thousand, twelve".