221002022132 has 12 divisors (see below), whose sum is σ = 391099084740. Its totient is φ = 109259426496.

The previous prime is 221002022119. The next prime is 221002022209. The reversal of 221002022132 is 231220200122.

It can be written as a sum of positive squares in 2 ways, for example, as 20965881616 + 200036140516 = 144796^2 + 447254^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221002022132.

It is a congruent number.

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, 310395743 + ... + 310396454.

It is an arithmetic number, because the mean of its divisors is an integer number (32591590395).

Almost surely, 2^221002022132 is an apocalyptic number.

It is an amenable number.

221002022132 is a deficient number, since it is larger than the sum of its proper divisors (170097062608).

221002022132 is a wasteful number, since it uses less digits than its factorization.

221002022132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620792290 (or 620792288 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 221002022132 its reverse (231220200122), we get a palindrome (452222222254).

The spelling of 221002022132 in words is "two hundred twenty-one billion, two million, twenty-two thousand, one hundred thirty-two".