221422047004234 has 64 divisors (see below), whose sum is σ = 352174371847200. Its totient is φ = 104245990331392.

The previous prime is 221422047004201. The next prime is 221422047004237. The reversal of 221422047004234 is 432400740224122.

It can be written as a sum of positive squares in 16 ways, for example, as 152858728596025 + 68563318408209 = 12363605^2 + 8280297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221422047004193 and 221422047004202.

It is not an unprimeable number, because it can be changed into a prime (221422047004237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2389340052 + ... + 2389432720.

Almost surely, 2^{221422047004234} is an apocalyptic number.

221422047004234 is a deficient number, since it is larger than the sum of its proper divisors (130752324842966).

221422047004234 is a wasteful number, since it uses less digits than its factorization.

221422047004234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97419.

The product of its (nonzero) digits is 172032, while the sum is 37.

Adding to 221422047004234 its reverse (432400740224122), we get a palindrome (653822787228356).

The spelling of 221422047004234 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, four thousand, two hundred thirty-four".