202102212011 has 16 divisors (see below), whose sum is σ = 235999358400. Its totient is φ = 173001407040.

The previous prime is 202102211989. The next prime is 202102212017. The reversal of 202102212011 is 110212201202.

It is not a de Polignac number, because 202102212011 - 2²² = 202098017707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102212017) 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, 129530 + ... + 648831.

It is an arithmetic number, because the mean of its divisors is an integer number (14749959900).

Almost surely, 2^202102212011 is an apocalyptic number.

202102212011 is a deficient number, since it is larger than the sum of its proper divisors (33897146389).

202102212011 is an frugal number, since it uses more digits than its factorization.

202102212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779139 (or 779125 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202102212011 its reverse (110212201202), we get a palindrome (312314413213).

The spelling of 202102212011 in words is "two hundred two billion, one hundred two million, two hundred twelve thousand, eleven".