3211231220122 has 4 divisors (see below), whose sum is σ = 4816846830186. Its totient is φ = 1605615610060.

The previous prime is 3211231220089. The next prime is 3211231220143. The reversal of 3211231220122 is 2210221321123.

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

It can be written as a sum of positive squares in only one way, i.e., 2599314593121 + 611916627001 = 1612239^2 + 782251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3211231220093 and 3211231220102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802807805029 + ... + 802807805032.

Almost surely, 2^{3211231220122} is an apocalyptic number.

3211231220122 is a deficient number, since it is larger than the sum of its proper divisors (1605615610064).

3211231220122 is a wasteful number, since it uses less digits than its factorization.

3211231220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605615610063.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 3211231220122 its reverse (2210221321123), we get a palindrome (5421452541245).

The spelling of 3211231220122 in words is "three trillion, two hundred eleven billion, two hundred thirty-one million, two hundred twenty thousand, one hundred twenty-two".