20002152242 has 4 divisors (see below), whose sum is σ = 30003228366. Its totient is φ = 10001076120.

The previous prime is 20002152199. The next prime is 20002152257. The reversal of 20002152242 is 24225120002.

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., 19999899241 + 2253001 = 141421^2 + 1501^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000538059 + ... + 5000538062.

Almost surely, 2^20002152242 is an apocalyptic number.

20002152242 is a deficient number, since it is larger than the sum of its proper divisors (10001076124).

20002152242 is a wasteful number, since it uses less digits than its factorization.

20002152242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001076123.

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 20002152242 its reverse (24225120002), we get a palindrome (44227272244).

The spelling of 20002152242 in words is "twenty billion, two million, one hundred fifty-two thousand, two hundred forty-two".