201221223302 has 16 divisors (see below), whose sum is σ = 329373435024. Its totient is φ = 91435764000.

The previous prime is 201221223241. The next prime is 201221223337. The reversal of 201221223302 is 203322122102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348949 + ... + 1490672.

It is an arithmetic number, because the mean of its divisors is an integer number (20585839689).

Almost surely, 2^201221223302 is an apocalyptic number.

201221223302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201221223302 is a deficient number, since it is larger than the sum of its proper divisors (128152211722).

201221223302 is a wasteful number, since it uses less digits than its factorization.

201221223302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842855.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201221223302 its reverse (203322122102), we get a palindrome (404543345404).

The spelling of 201221223302 in words is "two hundred one billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred two".