221321041134 has 64 divisors (see below), whose sum is σ = 466420792320. Its totient is φ = 69935662080.

The previous prime is 221321041127. The next prime is 221321041159. The reversal of 221321041134 is 431140123122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1538262 + ... + 1675974.

It is an arithmetic number, because the mean of its divisors is an integer number (7287824880).

Almost surely, 2^221321041134 is an apocalyptic number.

221321041134 is an abundant number, since it is smaller than the sum of its proper divisors (245099751186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221321041134 is a wasteful number, since it uses less digits than its factorization.

221321041134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137945.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 221321041134 its reverse (431140123122), we get a palindrome (652461164256).

The spelling of 221321041134 in words is "two hundred twenty-one billion, three hundred twenty-one million, forty-one thousand, one hundred thirty-four".