221002222020002 has 8 divisors (see below), whose sum is σ = 331506768693996. Its totient is φ = 110499965788672.

The previous prime is 221002222020001. The next prime is 221002222020007. The reversal of 221002222020002 is 200020222200122.

It can be written as a sum of positive squares in 2 ways, for example, as 220771129340161 + 231092679841 = 14858369^2 + 480721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221002222020001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572369423 + ... + 572755410.

Almost surely, 2^{221002222020002} is an apocalyptic number.

221002222020002 is a deficient number, since it is larger than the sum of its proper divisors (110504546673994).

221002222020002 is a wasteful number, since it uses less digits than its factorization.

221002222020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145221332.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 221002222020002 its reverse (200020222200122), we get a palindrome (421022444220124).

The spelling of 221002222020002 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-two million, twenty thousand, two".