213012331222 has 4 divisors (see below), whose sum is σ = 319518496836. Its totient is φ = 106506165610.

The previous prime is 213012331219. The next prime is 213012331223. The reversal of 213012331222 is 222133210312.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 213012331193 and 213012331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012331223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53253082804 + ... + 53253082807.

It is an arithmetic number, because the mean of its divisors is an integer number (79879624209).

Almost surely, 2^213012331222 is an apocalyptic number.

213012331222 is a deficient number, since it is larger than the sum of its proper divisors (106506165614).

213012331222 is a wasteful number, since it uses less digits than its factorization.

213012331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106506165613.

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

Adding to 213012331222 its reverse (222133210312), we get a palindrome (435145541534).

The spelling of 213012331222 in words is "two hundred thirteen billion, twelve million, three hundred thirty-one thousand, two hundred twenty-two".