202011210221 has 4 divisors (see below), whose sum is σ = 212643379200. Its totient is φ = 191379041244.

The previous prime is 202011210211. The next prime is 202011210227. The reversal of 202011210221 is 122012110202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202011210221 - 2⁶ = 202011210157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202011210196 and 202011210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011210227) 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, 5316084461 + ... + 5316084498.

It is an arithmetic number, because the mean of its divisors is an integer number (53160844800).

Almost surely, 2^202011210221 is an apocalyptic number.

It is an amenable number.

202011210221 is a deficient number, since it is larger than the sum of its proper divisors (10632168979).

202011210221 is a wasteful number, since it uses less digits than its factorization.

202011210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10632168978.

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

Adding to 202011210221 its reverse (122012110202), we get a palindrome (324023320423).

The spelling of 202011210221 in words is "two hundred two billion, eleven million, two hundred ten thousand, two hundred twenty-one".