202010221211111 has 4 divisors (see below), whose sum is σ = 202013187699000. Its totient is φ = 202007254723224.

The previous prime is 202010221211083. The next prime is 202010221211137. The reversal of 202010221211111 is 111112122010202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202010221211111 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 202010221211111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202010221411111) 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, 1483141796 + ... + 1483277993.

It is an arithmetic number, because the mean of its divisors is an integer number (50503296924750).

Almost surely, 2^{202010221211111} is an apocalyptic number.

202010221211111 is a deficient number, since it is larger than the sum of its proper divisors (2966487889).

202010221211111 is an equidigital number, since it uses as much as digits as its factorization.

202010221211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966487888.

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

Adding to 202010221211111 its reverse (111112122010202), we get a palindrome (313122343221313).

The spelling of 202010221211111 in words is "two hundred two trillion, ten billion, two hundred twenty-one million, two hundred eleven thousand, one hundred eleven".