201112221202021 has 8 divisors (see below), whose sum is σ = 207291360919104. Its totient is φ = 195001359272160.

The previous prime is 201112221201979. The next prime is 201112221202037. The reversal of 201112221202021 is 120202122211102.

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

It is a cyclic number.

It is not a de Polignac number, because 201112221202021 - 2¹⁹ = 201112220677733 is a prime.

It is a super-2 number, since 2×201112221202021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201112221202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112221206021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17069440825 + ... + 17069452606.

It is an arithmetic number, because the mean of its divisors is an integer number (25911420114888).

Almost surely, 2^{201112221202021} is an apocalyptic number.

It is an amenable number.

201112221202021 is a deficient number, since it is larger than the sum of its proper divisors (6179139717083).

201112221202021 is a wasteful number, since it uses less digits than its factorization.

201112221202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34138893611.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201112221202021 its reverse (120202122211102), we get a palindrome (321314343413123).

The spelling of 201112221202021 in words is "two hundred one trillion, one hundred twelve billion, two hundred twenty-one million, two hundred two thousand, twenty-one".