221232400334 has 16 divisors (see below), whose sum is σ = 364414121856. Its totient is φ = 99894219000.

The previous prime is 221232400327. The next prime is 221232400351. The reversal of 221232400334 is 433004232122.

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, 33294752 + ... + 33301395.

It is an arithmetic number, because the mean of its divisors is an integer number (22775882616).

Almost surely, 2^221232400334 is an apocalyptic number.

221232400334 is a deficient number, since it is larger than the sum of its proper divisors (143181721522).

221232400334 is a wasteful number, since it uses less digits than its factorization.

221232400334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66596311.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 221232400334 its reverse (433004232122), we get a palindrome (654236632456).

The spelling of 221232400334 in words is "two hundred twenty-one billion, two hundred thirty-two million, four hundred thousand, three hundred thirty-four".