221001332301132 has 12 divisors (see below), whose sum is σ = 515669775369336. Its totient is φ = 73667110767040.

The previous prime is 221001332301097. The next prime is 221001332301163. The reversal of 221001332301132 is 231103233100122.

It is a tau number, because it is divible by the number of its divisors (12).

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, 9208388845869 + ... + 9208388845892.

It is an arithmetic number, because the mean of its divisors is an integer number (42972481280778).

Almost surely, 2^{221001332301132} is an apocalyptic number.

It is an amenable number.

221001332301132 is an abundant number, since it is smaller than the sum of its proper divisors (294668443068204).

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

221001332301132 is a wasteful number, since it uses less digits than its factorization.

221001332301132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18416777691768 (or 18416777691766 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 221001332301132 its reverse (231103233100122), we get a palindrome (452104565401254).

The spelling of 221001332301132 in words is "two hundred twenty-one trillion, one billion, three hundred thirty-two million, three hundred one thousand, one hundred thirty-two".