201221221320130 has 64 divisors (see below), whose sum is σ = 395490227166720. Its totient is φ = 73103806585600.

The previous prime is 201221221320107. The next prime is 201221221320157. The reversal of 201221221320130 is 31023122122102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522841911 + ... + 523226629.

It is an arithmetic number, because the mean of its divisors is an integer number (6179534799480).

Almost surely, 2^{201221221320130} is an apocalyptic number.

201221221320130 is a deficient number, since it is larger than the sum of its proper divisors (194269005846590).

201221221320130 is a wasteful number, since it uses less digits than its factorization.

201221221320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389115.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 201221221320130 its reverse (31023122122102), we get a palindrome (232244343442232).

The spelling of 201221221320130 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred twenty-one million, three hundred twenty thousand, one hundred thirty".