211110022021 has 8 divisors (see below), whose sum is σ = 211457332224. Its totient is φ = 210762797520.

The previous prime is 211110022009. The next prime is 211110022031. The reversal of 211110022021 is 120220011112.

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 211110022021 - 2⁷ = 211110021893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211110021992 and 211110022010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211110022001) 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 7 ways as a sum of consecutive naturals, for example, 6519156 + ... + 6551458.

It is an arithmetic number, because the mean of its divisors is an integer number (26432166528).

Almost surely, 2^211110022021 is an apocalyptic number.

It is an amenable number.

211110022021 is a deficient number, since it is larger than the sum of its proper divisors (347310203).

211110022021 is an equidigital number, since it uses as much as digits as its factorization.

211110022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42851.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211110022021 its reverse (120220011112), we get a palindrome (331330033133).

The spelling of 211110022021 in words is "two hundred eleven billion, one hundred ten million, twenty-two thousand, twenty-one".