20010202111 has 8 divisors (see below), whose sum is σ = 20311251840. Its totient is φ = 19709222808.

The previous prime is 20010202097. The next prime is 20010202117. The reversal of 20010202111 is 11120201002.

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

It is a cyclic number.

It is not a de Polignac number, because 20010202111 - 2⁷ = 20010201983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010202117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953550 + ... + 974308.

It is an arithmetic number, because the mean of its divisors is an integer number (2538906480).

Almost surely, 2^20010202111 is an apocalyptic number.

20010202111 is a deficient number, since it is larger than the sum of its proper divisors (301049729).

20010202111 is a wasteful number, since it uses less digits than its factorization.

20010202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35213.

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

Adding to 20010202111 its reverse (11120201002), we get a palindrome (31130403113).

The spelling of 20010202111 in words is "twenty billion, ten million, two hundred two thousand, one hundred eleven".