20101000202 has 8 divisors (see below), whose sum is σ = 31191207300. Its totient is φ = 9703931104.

The previous prime is 20101000189. The next prime is 20101000207. The reversal of 20101000202 is 20200010102.

It can be written as a sum of positive squares in 2 ways, for example, as 17835335401 + 2265664801 = 133549^2 + 47599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20101000202.

It is not an unprimeable number, because it can be changed into a prime (20101000207) 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, 173284427 + ... + 173284542.

Almost surely, 2^20101000202 is an apocalyptic number.

20101000202 is a deficient number, since it is larger than the sum of its proper divisors (11090207098).

20101000202 is a wasteful number, since it uses less digits than its factorization.

20101000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346569000.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20101000202 its reverse (20200010102), we get a palindrome (40301010304).

The spelling of 20101000202 in words is "twenty billion, one hundred one million, two hundred two", and thus it is an aban number.