221012010201 has 16 divisors (see below), whose sum is σ = 302671793600. Its totient is φ = 143347434048.

The previous prime is 221012010179. The next prime is 221012010209. The reversal of 221012010201 is 102010210122.

It is not a de Polignac number, because 221012010201 - 2⁵ = 221012010169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221012010209) 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, 1405995 + ... + 1555263.

It is an arithmetic number, because the mean of its divisors is an integer number (18916987100).

Almost surely, 2^221012010201 is an apocalyptic number.

It is an amenable number.

221012010201 is a deficient number, since it is larger than the sum of its proper divisors (81659783399).

221012010201 is a wasteful number, since it uses less digits than its factorization.

221012010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162648.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221012010201 its reverse (102010210122), we get a palindrome (323022220323).

It can be divided in two parts, 22101 and 2010201, that added together give a palindrome (2032302).

The spelling of 221012010201 in words is "two hundred twenty-one billion, twelve million, ten thousand, two hundred one".