201221400302 has 16 divisors (see below), whose sum is σ = 325084939872. Its totient is φ = 92861419680.

The previous prime is 201221400301. The next prime is 201221400383. The reversal of 201221400302 is 203004122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221400301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167474 + ... + 656117.

It is an arithmetic number, because the mean of its divisors is an integer number (20317808742).

Almost surely, 2^201221400302 is an apocalyptic number.

201221400302 is a deficient number, since it is larger than the sum of its proper divisors (123863539570).

201221400302 is a wasteful number, since it uses less digits than its factorization.

201221400302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833003.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 201221400302 its reverse (203004122102), we get a palindrome (404225522404).

The spelling of 201221400302 in words is "two hundred one billion, two hundred twenty-one million, four hundred thousand, three hundred two".