3211111213222 has 8 divisors (see below), whose sum is σ = 5254545621672. Its totient is φ = 1459596006000.

The previous prime is 3211111213139. The next prime is 3211111213223. The reversal of 3211111213222 is 2223121111123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3211111213222² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 145959600601 = 3211111213222 / (3 + 2 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 3 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 3211111213193 and 3211111213202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211111213223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72979800279 + ... + 72979800322.

It is an arithmetic number, because the mean of its divisors is an integer number (656818202709).

Almost surely, 2^{3211111213222} is an apocalyptic number.

3211111213222 is a deficient number, since it is larger than the sum of its proper divisors (2043434408450).

3211111213222 is a wasteful number, since it uses less digits than its factorization.

3211111213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145959600614.

The product of its digits is 288, while the sum is 22.

Adding to 3211111213222 its reverse (2223121111123), we get a palindrome (5434232324345).

The spelling of 3211111213222 in words is "three trillion, two hundred eleven billion, one hundred eleven million, two hundred thirteen thousand, two hundred twenty-two".