1210221331222 has 16 divisors (see below), whose sum is σ = 1951532720640. Its totient is φ = 561065655528.

The previous prime is 1210221331219. The next prime is 1210221331223. The reversal of 1210221331222 is 2221331220121.

It is a junction number, because it is equal to n+sod(n) for n = 1210221331193 and 1210221331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210221331223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338805978 + ... + 338809549.

It is an arithmetic number, because the mean of its divisors is an integer number (121970795040).

Almost surely, 2^{1210221331222} is an apocalyptic number.

1210221331222 is a deficient number, since it is larger than the sum of its proper divisors (741311389418).

1210221331222 is a wasteful number, since it uses less digits than its factorization.

1210221331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677615595.

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

Adding to 1210221331222 its reverse (2221331220121), we get a palindrome (3431552551343).

The spelling of 1210221331222 in words is "one trillion, two hundred ten billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred twenty-two".