1240444311222 has 16 divisors (see below), whose sum is σ = 2481190129152. Its totient is φ = 413431185960.

The previous prime is 1240444311193. The next prime is 1240444311233. The reversal of 1240444311222 is 2221134440421.

It is a self number, because there is not a number n which added to its sum of digits gives 1240444311222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12509278 + ... + 12608049.

It is an arithmetic number, because the mean of its divisors is an integer number (155074383072).

Almost surely, 2^{1240444311222} is an apocalyptic number.

1240444311222 is an abundant number, since it is smaller than the sum of its proper divisors (1240745817930).

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

1240444311222 is a wasteful number, since it uses less digits than its factorization.

1240444311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25125563.

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

Adding to 1240444311222 its reverse (2221134440421), we get a palindrome (3461578751643).

The spelling of 1240444311222 in words is "one trillion, two hundred forty billion, four hundred forty-four million, three hundred eleven thousand, two hundred twenty-two".