2142244352522 has 4 divisors (see below), whose sum is σ = 3213366528786. Its totient is φ = 1071122176260.

The previous prime is 2142244352519. The next prime is 2142244352527. The reversal of 2142244352522 is 2252534422412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2123172466321 + 19071886201 = 1457111^2 + 138101^2 .

It is not an unprimeable number, because it can be changed into a prime (2142244352527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535561088129 + ... + 535561088132.

Almost surely, 2^{2142244352522} is an apocalyptic number.

2142244352522 is a deficient number, since it is larger than the sum of its proper divisors (1071122176264).

2142244352522 is a wasteful number, since it uses less digits than its factorization.

2142244352522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071122176263.

The product of its digits is 307200, while the sum is 38.

Adding to 2142244352522 its reverse (2252534422412), we get a palindrome (4394778774934).

The spelling of 2142244352522 in words is "two trillion, one hundred forty-two billion, two hundred forty-four million, three hundred fifty-two thousand, five hundred twenty-two".