211102022021 has 16 divisors (see below), whose sum is σ = 231435525888. Its totient is φ = 190960718400.

The previous prime is 211102021981. The next prime is 211102022069. The reversal of 211102022021 is 120220201112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211102022021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211102021987 and 211102022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102022071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2331431 + ... + 2420283.

It is an arithmetic number, because the mean of its divisors is an integer number (14464720368).

Almost surely, 2^211102022021 is an apocalyptic number.

It is an amenable number.

211102022021 is a deficient number, since it is larger than the sum of its proper divisors (20333503867).

211102022021 is a wasteful number, since it uses less digits than its factorization.

211102022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89932.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211102022021 its reverse (120220201112), we get a palindrome (331322223133).

The spelling of 211102022021 in words is "two hundred eleven billion, one hundred two million, twenty-two thousand, twenty-one".