221001112011202 has 4 divisors (see below), whose sum is σ = 331501668016806. Its totient is φ = 110500556005600.

The previous prime is 221001112011091. The next prime is 221001112011217. The reversal of 221001112011202 is 202110211100122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 210313253756761 + 10687858254441 = 14502181^2 + 3269229^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55250278002799 + ... + 55250278002802.

Almost surely, 2^{221001112011202} is an apocalyptic number.

221001112011202 is a deficient number, since it is larger than the sum of its proper divisors (110500556005604).

221001112011202 is a wasteful number, since it uses less digits than its factorization.

221001112011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110500556005603.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221001112011202 its reverse (202110211100122), we get a palindrome (423111323111324).

The spelling of 221001112011202 in words is "two hundred twenty-one trillion, one billion, one hundred twelve million, eleven thousand, two hundred two".