221001112201202 has 16 divisors (see below), whose sum is σ = 345117045423960. Its totient is φ = 106010636729088.

The previous prime is 221001112201147. The next prime is 221001112201237. The reversal of 221001112201202 is 202102211100122.

It can be written as a sum of positive squares in 4 ways, for example, as 208169521342561 + 12831590858641 = 14428081^2 + 3582121^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12134908103 + ... + 12134926314.

Almost surely, 2^{221001112201202} is an apocalyptic number.

221001112201202 is a deficient number, since it is larger than the sum of its proper divisors (124115933222758).

221001112201202 is a wasteful number, since it uses less digits than its factorization.

221001112201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24269834605.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221001112201202 its reverse (202102211100122), we get a palindrome (423103323301324).

The spelling of 221001112201202 in words is "two hundred twenty-one trillion, one billion, one hundred twelve million, two hundred one thousand, two hundred two".