211122202102001 has 4 divisors (see below), whose sum is σ = 211129867871604. Its totient is φ = 211114536332400.

The previous prime is 211122202101947. The next prime is 211122202102033. The reversal of 211122202102001 is 100201202221112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 92708108535025 + 118414093566976 = 9628505^2 + 10881824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211122202102001 is a prime.

It is a super-3 number, since 3×211122202102001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122202102061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3832843490 + ... + 3832898571.

It is an arithmetic number, because the mean of its divisors is an integer number (52782466967901).

Almost surely, 2^{211122202102001} is an apocalyptic number.

It is an amenable number.

211122202102001 is a deficient number, since it is larger than the sum of its proper divisors (7665769603).

211122202102001 is an equidigital number, since it uses as much as digits as its factorization.

211122202102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665769602.

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

Adding to 211122202102001 its reverse (100201202221112), we get a palindrome (311323404323113).

The spelling of 211122202102001 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred two million, one hundred two thousand, one".