20204420202 has 24 divisors (see below), whose sum is σ = 46351317636. Its totient is φ = 6338641536.

The previous prime is 20204420077. The next prime is 20204420231. The reversal of 20204420202 is 20202440202.

20204420202 is a `hidden beast` number, since 2 + 0 + 20 + 442 + 0 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20197810161 + 6610041 = 142119^2 + 2571^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33013453 + ... + 33014064.

Almost surely, 2^20204420202 is an apocalyptic number.

20204420202 is an abundant number, since it is smaller than the sum of its proper divisors (26146897434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20204420202 is a wasteful number, since it uses less digits than its factorization.

20204420202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66027542 (or 66027539 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20204420202 its reverse (20202440202), we get a palindrome (40406860404).

The spelling of 20204420202 in words is "twenty billion, two hundred four million, four hundred twenty thousand, two hundred two".