2142202343444 has 12 divisors (see below), whose sum is σ = 3810310726068. Its totient is φ = 1053542136000.

The previous prime is 2142202343387. The next prime is 2142202343447. The reversal of 2142202343444 is 4443432022412.

It can be written as a sum of positive squares in 2 ways, for example, as 511825776400 + 1630376567044 = 715420^2 + 1276862^2 .

It is a super-2 number, since 2×2142202343444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142202343447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4389758657 + ... + 4389759144.

It is an arithmetic number, because the mean of its divisors is an integer number (317525893839).

Almost surely, 2^{2142202343444} is an apocalyptic number.

It is an amenable number.

2142202343444 is a deficient number, since it is larger than the sum of its proper divisors (1668108382624).

2142202343444 is a wasteful number, since it uses less digits than its factorization.

2142202343444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8779517866 (or 8779517864 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 2142202343444 its reverse (4443432022412), we get a palindrome (6585634365856).

The spelling of 2142202343444 in words is "two trillion, one hundred forty-two billion, two hundred two million, three hundred forty-three thousand, four hundred forty-four".