221020112002202 has 8 divisors (see below), whose sum is σ = 331568803405812. Its totient is φ = 110497177533600.

The previous prime is 221020112002147. The next prime is 221020112002211. The reversal of 221020112002202 is 202200211020122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 137092508239801 + 83927603762401 = 11708651^2 + 9161201^2 .

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

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, 6439212299 + ... + 6439246622.

Almost surely, 2^{221020112002202} is an apocalyptic number.

221020112002202 is a deficient number, since it is larger than the sum of its proper divisors (110548691403610).

221020112002202 is a wasteful number, since it uses less digits than its factorization.

221020112002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12878467504.

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

Adding to 221020112002202 its reverse (202200211020122), we get a palindrome (423220323022324).

The spelling of 221020112002202 in words is "two hundred twenty-one trillion, twenty billion, one hundred twelve million, two thousand, two hundred two".