221022301201 has 16 divisors (see below), whose sum is σ = 239685642000. Its totient is φ = 202597072128.

The previous prime is 221022301163. The next prime is 221022301211. The reversal of 221022301201 is 102103220122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4238010000 + 216784291201 = 65100^2 + 465601^2 .

It is a cyclic number.

It is not a de Polignac number, because 221022301201 - 2¹⁷ = 221022170129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221022301211) 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, 8426415 + ... + 8452603.

It is an arithmetic number, because the mean of its divisors is an integer number (14980352625).

Almost surely, 2^221022301201 is an apocalyptic number.

It is an amenable number.

221022301201 is a deficient number, since it is larger than the sum of its proper divisors (18663340799).

221022301201 is a wasteful number, since it uses less digits than its factorization.

221022301201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30708.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221022301201 its reverse (102103220122), we get a palindrome (323125521323).

The spelling of 221022301201 in words is "two hundred twenty-one billion, twenty-two million, three hundred one thousand, two hundred one".