1213422201444 has 24 divisors (see below), whose sum is σ = 2833494769728. Its totient is φ = 404163167200.

The previous prime is 1213422201443. The next prime is 1213422201451. The reversal of 1213422201444 is 4441022243121.

It is not an unprimeable number, because it can be changed into a prime (1213422201443) 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, 38846232 + ... + 38877455.

It is an arithmetic number, because the mean of its divisors is an integer number (118062282072).

Almost surely, 2^{1213422201444} is an apocalyptic number.

It is an amenable number.

1213422201444 is an abundant number, since it is smaller than the sum of its proper divisors (1620072568284).

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

1213422201444 is a wasteful number, since it uses less digits than its factorization.

1213422201444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77724995 (or 77724993 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 1213422201444 its reverse (4441022243121), we get a palindrome (5654444444565).

The spelling of 1213422201444 in words is "one trillion, two hundred thirteen billion, four hundred twenty-two million, two hundred one thousand, four hundred forty-four".