20202010101 has 48 divisors (see below), whose sum is σ = 36885407104. Its totient is φ = 10367989632.

The previous prime is 20202010099. The next prime is 20202010111. The reversal of 20202010101 is 10101020202.

It is not a de Polignac number, because 20202010101 - 2¹ = 20202010099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202010111) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 303031 + ... + 363636.

Almost surely, 2^20202010101 is an apocalyptic number.

20202010101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20202010101 is a deficient number, since it is larger than the sum of its proper divisors (16683397003).

20202010101 is a wasteful number, since it uses less digits than its factorization.

20202010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666730 (or 666727 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20202010101 its reverse (10101020202), we get a palindrome (30303030303).

The spelling of 20202010101 in words is "twenty billion, two hundred two million, ten thousand, one hundred one".