20202221211002 has 8 divisors (see below), whose sum is σ = 30303380099700. Its totient is φ = 10101094511104.

The previous prime is 20202221210959. The next prime is 20202221211041. The reversal of 20202221211002 is 20011212220202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19977136437241 + 225084773761 = 4469579^2 + 474431^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6411677 + ... + 9028512.

Almost surely, 2^{20202221211002} is an apocalyptic number.

20202221211002 is a deficient number, since it is larger than the sum of its proper divisors (10101158888698).

20202221211002 is a wasteful number, since it uses less digits than its factorization.

20202221211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16094400.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20202221211002 its reverse (20011212220202), we get a palindrome (40213433431204).

The spelling of 20202221211002 in words is "twenty trillion, two hundred two billion, two hundred twenty-one million, two hundred eleven thousand, two".