2102522242 has 4 divisors (see below), whose sum is σ = 3153783366. Its totient is φ = 1051261120.

The previous prime is 2102522221. The next prime is 2102522251. The reversal of 2102522242 is 2422252012.

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., 2017716561 + 84805681 = 44919^2 + 9209^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525630559 + ... + 525630562.

Almost surely, 2^2102522242 is an apocalyptic number.

2102522242 is a deficient number, since it is larger than the sum of its proper divisors (1051261124).

2102522242 is a wasteful number, since it uses less digits than its factorization.

2102522242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051261123.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2102522242 is about 45853.2686075922. The cubic root of 2102522242 is about 1281.0916472565.

Adding to 2102522242 its reverse (2422252012), we get a palindrome (4524774254).

The spelling of 2102522242 in words is "two billion, one hundred two million, five hundred twenty-two thousand, two hundred forty-two".