213012231322 has 32 divisors (see below), whose sum is σ = 352231939584. Its totient is φ = 95808115200.

The previous prime is 213012231239. The next prime is 213012231323. The reversal of 213012231322 is 223132210312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 213012231293 and 213012231302.

It is not an unprimeable number, because it can be changed into a prime (213012231323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438422 + ... + 1579582.

It is an arithmetic number, because the mean of its divisors is an integer number (11007248112).

Almost surely, 2^213012231322 is an apocalyptic number.

213012231322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213012231322 is a deficient number, since it is larger than the sum of its proper divisors (139219708262).

213012231322 is a wasteful number, since it uses less digits than its factorization.

213012231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141894.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213012231322 its reverse (223132210312), we get a palindrome (436144441634).

The spelling of 213012231322 in words is "two hundred thirteen billion, twelve million, two hundred thirty-one thousand, three hundred twenty-two".