1213022220222 has 16 divisors (see below), whose sum is σ = 2427375260160. Its totient is φ = 404118936792.

The previous prime is 1213022220217. The next prime is 1213022220253. The reversal of 1213022220222 is 2220222203121.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 55438972 + ... + 55460847.

It is an arithmetic number, because the mean of its divisors is an integer number (151710953760).

Almost surely, 2^{1213022220222} is an apocalyptic number.

1213022220222 is an abundant number, since it is smaller than the sum of its proper divisors (1214353039938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213022220222 is a wasteful number, since it uses less digits than its factorization.

1213022220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110901647.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1213022220222 its reverse (2220222203121), we get a palindrome (3433244423343).

The spelling of 1213022220222 in words is "one trillion, two hundred thirteen billion, twenty-two million, two hundred twenty thousand, two hundred twenty-two".