20124142202 has 16 divisors (see below), whose sum is σ = 31503473640. Its totient is φ = 9629125632.

The previous prime is 20124142189. The next prime is 20124142229. The reversal of 20124142202 is 20224142102.

It can be written as a sum of positive squares in 4 ways, for example, as 11438088601 + 8686053601 = 106949^2 + 93199^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528703 + ... + 1541810.

Almost surely, 2^20124142202 is an apocalyptic number.

20124142202 is a deficient number, since it is larger than the sum of its proper divisors (11379331438).

20124142202 is a wasteful number, since it uses less digits than its factorization.

20124142202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070657.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20124142202 its reverse (20224142102), we get a palindrome (40348284304).

The spelling of 20124142202 in words is "twenty billion, one hundred twenty-four million, one hundred forty-two thousand, two hundred two".