202011112221 has 16 divisors (see below), whose sum is σ = 279283630080. Its totient is φ = 129745298160.

The previous prime is 202011112201. The next prime is 202011112223. The reversal of 202011112221 is 122211110202.

It is not a de Polignac number, because 202011112221 - 2⁵ = 202011112189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202011112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011112223) 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, 4849581 + ... + 4891058.

It is an arithmetic number, because the mean of its divisors is an integer number (17455226880).

Almost surely, 2^202011112221 is an apocalyptic number.

It is an amenable number.

202011112221 is a deficient number, since it is larger than the sum of its proper divisors (77272517859).

202011112221 is a wasteful number, since it uses less digits than its factorization.

202011112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9740896.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202011112221 its reverse (122211110202), we get a palindrome (324222222423).

The spelling of 202011112221 in words is "two hundred two billion, eleven million, one hundred twelve thousand, two hundred twenty-one".