20102242252 has 12 divisors (see below), whose sum is σ = 35279725600. Its totient is φ = 10022320656.

The previous prime is 20102242249. The next prime is 20102242253. The reversal of 20102242252 is 25224220102.

It is not an unprimeable number, because it can be changed into a prime (20102242253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7198548 + ... + 7201339.

Almost surely, 2^20102242252 is an apocalyptic number.

It is an amenable number.

20102242252 is a deficient number, since it is larger than the sum of its proper divisors (15177483348).

20102242252 is a wasteful number, since it uses less digits than its factorization.

20102242252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14400240 (or 14400238 counting only the distinct ones).

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

Adding to 20102242252 its reverse (25224220102), we get a palindrome (45326462354).

The spelling of 20102242252 in words is "twenty billion, one hundred two million, two hundred forty-two thousand, two hundred fifty-two".