213211304120 has 32 divisors (see below), whose sum is σ = 479765844720. Its totient is φ = 85277337600.

The previous prime is 213211304107. The next prime is 213211304147. The reversal of 213211304120 is 21403112312.

It is a super-2 number, since 2×213211304120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 213211304092 and 213211304101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269720 + ... + 706520.

Almost surely, 2^213211304120 is an apocalyptic number.

213211304120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213211304120 is an abundant number, since it is smaller than the sum of its proper divisors (266554540600).

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

213211304120 is a wasteful number, since it uses less digits than its factorization.

213211304120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449015 (or 449011 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 213211304120 its reverse (21403112312), we get a palindrome (234614416432).

The spelling of 213211304120 in words is "two hundred thirteen billion, two hundred eleven million, three hundred four thousand, one hundred twenty".