20202111010 has 8 divisors (see below), whose sum is σ = 36363799836. Its totient is φ = 8080844400.

The previous prime is 20202110989. The next prime is 20202111011. The reversal of 20202111010 is 1011120202.

It can be written as a sum of positive squares in 2 ways, for example, as 16487330409 + 3714780601 = 128403^2 + 60949^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 2020211101 = 20202111010 / (2 + 0 + 2 + 0 + 2 + 1 + 1 + 1 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (20202111011) 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, 1010105541 + ... + 1010105560.

Almost surely, 2^20202111010 is an apocalyptic number.

20202111010 is a deficient number, since it is larger than the sum of its proper divisors (16161688826).

20202111010 is a wasteful number, since it uses less digits than its factorization.

20202111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020211108.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20202111010 its reverse (1011120202), we get a palindrome (21213231212).

The spelling of 20202111010 in words is "twenty billion, two hundred two million, one hundred eleven thousand, ten".