221231201320234 has 8 divisors (see below), whose sum is σ = 379253487977568. Its totient is φ = 94813371994380.

The previous prime is 221231201320183. The next prime is 221231201320243. The reversal of 221231201320234 is 432023102132122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7901114332852 + ... + 7901114332879.

It is an arithmetic number, because the mean of its divisors is an integer number (47406685997196).

Almost surely, 2^{221231201320234} is an apocalyptic number.

221231201320234 is a deficient number, since it is larger than the sum of its proper divisors (158022286657334).

221231201320234 is a wasteful number, since it uses less digits than its factorization.

221231201320234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15802228665740.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 221231201320234 its reverse (432023102132122), we get a palindrome (653254303452356).

The spelling of 221231201320234 in words is "two hundred twenty-one trillion, two hundred thirty-one billion, two hundred one million, three hundred twenty thousand, two hundred thirty-four".