201011010221 has 16 divisors (see below), whose sum is σ = 230929152000. Its totient is φ = 171393800688.

The previous prime is 201011010203. The next prime is 201011010223. The reversal of 201011010221 is 122010110102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201011010221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011010223) 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, 8405960 + ... + 8429838.

It is an arithmetic number, because the mean of its divisors is an integer number (14433072000).

Almost surely, 2^201011010221 is an apocalyptic number.

It is an amenable number.

201011010221 is a deficient number, since it is larger than the sum of its proper divisors (29918141779).

201011010221 is a wasteful number, since it uses less digits than its factorization.

201011010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30128.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201011010221 its reverse (122010110102), we get a palindrome (323021120323).

The spelling of 201011010221 in words is "two hundred one billion, eleven million, ten thousand, two hundred twenty-one".