1221214334422 has 16 divisors (see below), whose sum is σ = 1895033575440. Its totient is φ = 589537494112.

The previous prime is 1221214334399. The next prime is 1221214334429. The reversal of 1221214334422 is 2244334121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221214334429) 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, 2402133 + ... + 2865775.

It is an arithmetic number, because the mean of its divisors is an integer number (118439598465).

Almost surely, 2^{1221214334422} is an apocalyptic number.

1221214334422 is a deficient number, since it is larger than the sum of its proper divisors (673819241018).

1221214334422 is a wasteful number, since it uses less digits than its factorization.

1221214334422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509087.

The product of its digits is 18432, while the sum is 31.

Adding to 1221214334422 its reverse (2244334121221), we get a palindrome (3465548455643).

The spelling of 1221214334422 in words is "one trillion, two hundred twenty-one billion, two hundred fourteen million, three hundred thirty-four thousand, four hundred twenty-two".