2201221212323 has 32 divisors (see below), whose sum is σ = 2781765504000. Its totient is φ = 1698267136896.

The previous prime is 2201221212319. The next prime is 2201221212347. The reversal of 2201221212323 is 3232121221022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2201221212323 - 2² = 2201221212319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2201221212353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1958936 + ... + 2870517.

It is an arithmetic number, because the mean of its divisors is an integer number (86930172000).

Almost surely, 2^{2201221212323} is an apocalyptic number.

2201221212323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2201221212323 is a deficient number, since it is larger than the sum of its proper divisors (580544291677).

2201221212323 is a wasteful number, since it uses less digits than its factorization.

2201221212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829651.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2201221212323 its reverse (3232121221022), we get a palindrome (5433342433345).

The spelling of 2201221212323 in words is "two trillion, two hundred one billion, two hundred twenty-one million, two hundred twelve thousand, three hundred twenty-three".