20101020202 has 16 divisors (see below), whose sum is σ = 30502114272. Its totient is φ = 9933989200.

The previous prime is 20101020139. The next prime is 20101020257. The reversal of 20101020202 is 20202010102.

It is a super-2 number, since 2×20101020202² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33813 + ... + 203335.

It is an arithmetic number, because the mean of its divisors is an integer number (1906382142).

Almost surely, 2^20101020202 is an apocalyptic number.

20101020202 is a deficient number, since it is larger than the sum of its proper divisors (10401094070).

20101020202 is a wasteful number, since it uses less digits than its factorization.

20101020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170213.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20101020202 its reverse (20202010102), we get a palindrome (40303030304).

The spelling of 20101020202 in words is "twenty billion, one hundred one million, twenty thousand, two hundred two".