10202020211111 has 8 divisors (see below), whose sum is σ = 10245401344464. Its totient is φ = 10158647748480.

The previous prime is 10202020211093. The next prime is 10202020211203. The reversal of 10202020211111 is 11111202020201.

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 10202020211111 - 2¹⁰ = 10202020210087 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 (10202020271111) 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, 196001 + ... + 4521333.

It is an arithmetic number, because the mean of its divisors is an integer number (1280675168058).

Almost surely, 2^{10202020211111} is an apocalyptic number.

10202020211111 is a deficient number, since it is larger than the sum of its proper divisors (43381133353).

10202020211111 is an equidigital number, since it uses as much as digits as its factorization.

10202020211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4335361.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10202020211111 its reverse (11111202020201), we get a palindrome (21313222231312).

The spelling of 10202020211111 in words is "ten trillion, two hundred two billion, twenty million, two hundred eleven thousand, one hundred eleven".