202102102211111 has 16 divisors (see below), whose sum is σ = 205842491965440. Its totient is φ = 198384119382240.

The previous prime is 202102102211011. The next prime is 202102102211201. The reversal of 202102102211111 is 111112201201202.

202102102211111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202102102211111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202102102211111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102102211011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19717850 + ... + 28160216.

It is an arithmetic number, because the mean of its divisors is an integer number (12865155747840).

Almost surely, 2^{202102102211111} is an apocalyptic number.

202102102211111 is a deficient number, since it is larger than the sum of its proper divisors (3740389754329).

202102102211111 is an equidigital number, since it uses as much as digits as its factorization.

202102102211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8443694.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 202102102211111 its reverse (111112201201202), we get a palindrome (313214303412313).

The spelling of 202102102211111 in words is "two hundred two trillion, one hundred two billion, one hundred two million, two hundred eleven thousand, one hundred eleven".