221012001301 has 16 divisors (see below), whose sum is σ = 272034201600. Its totient is φ = 174854147328.

The previous prime is 221012001299. The next prime is 221012001311. The reversal of 221012001301 is 103100210122.

221012001301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221012001301 - 2¹ = 221012001299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012001311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1318605 + ... + 1476733.

It is an arithmetic number, because the mean of its divisors is an integer number (17002137600).

Almost surely, 2^221012001301 is an apocalyptic number.

It is an amenable number.

221012001301 is a deficient number, since it is larger than the sum of its proper divisors (51022200299).

221012001301 is a wasteful number, since it uses less digits than its factorization.

221012001301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173508.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 221012001301 its reverse (103100210122), we get a palindrome (324112211423).

The spelling of 221012001301 in words is "two hundred twenty-one billion, twelve million, one thousand, three hundred one".