221122001132 has 12 divisors (see below), whose sum is σ = 386974640976. Its totient is φ = 110557818000.

The previous prime is 221122001131. The next prime is 221122001141. The reversal of 221122001132 is 231100221122.

It is a self number, because there is not a number n which added to its sum of digits gives 221122001132.

It is not an unprimeable number, because it can be changed into a prime (221122001131) 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, 635744 + ... + 920007.

It is an arithmetic number, because the mean of its divisors is an integer number (32247886748).

Almost surely, 2^221122001132 is an apocalyptic number.

It is an amenable number.

221122001132 is a deficient number, since it is larger than the sum of its proper divisors (165852639844).

221122001132 is a wasteful number, since it uses less digits than its factorization.

221122001132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591288 (or 1591286 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221122001132 its reverse (231100221122), we get a palindrome (452222222254).

The spelling of 221122001132 in words is "two hundred twenty-one billion, one hundred twenty-two million, one thousand, one hundred thirty-two".