221401214234 has 8 divisors (see below), whose sum is σ = 349580864640. Its totient is φ = 104874259356.

The previous prime is 221401214213. The next prime is 221401214239. The reversal of 221401214234 is 432412104122.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221401214239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2913173834 + ... + 2913173909.

It is an arithmetic number, because the mean of its divisors is an integer number (43697608080).

Almost surely, 2^221401214234 is an apocalyptic number.

221401214234 is a deficient number, since it is larger than the sum of its proper divisors (128179650406).

221401214234 is a wasteful number, since it uses less digits than its factorization.

221401214234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5826347764.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 221401214234 its reverse (432412104122), we get a palindrome (653813318356).

The spelling of 221401214234 in words is "two hundred twenty-one billion, four hundred one million, two hundred fourteen thousand, two hundred thirty-four".