221001330322201 has 16 divisors (see below), whose sum is σ = 259638763321728. Its totient is φ = 185455064102400.

The previous prime is 221001330322177. The next prime is 221001330322309. The reversal of 221001330322201 is 102223033100122.

It is a cyclic number.

It is not a de Polignac number, because 221001330322201 - 2¹¹ = 221001330320153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001330322001) 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, 45219145 + ... + 49867561.

It is an arithmetic number, because the mean of its divisors is an integer number (16227422707608).

Almost surely, 2^{221001330322201} is an apocalyptic number.

It is an amenable number.

221001330322201 is a deficient number, since it is larger than the sum of its proper divisors (38637432999527).

221001330322201 is a wasteful number, since it uses less digits than its factorization.

221001330322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4980912.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221001330322201 its reverse (102223033100122), we get a palindrome (323224363422323).

The spelling of 221001330322201 in words is "two hundred twenty-one trillion, one billion, three hundred thirty million, three hundred twenty-two thousand, two hundred one".