211022021011 has 8 divisors (see below), whose sum is σ = 214198236000. Its totient is φ = 207851474880.

The previous prime is 211022020997. The next prime is 211022021069. The reversal of 211022021011 is 110120220112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211022021011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211022020982 and 211022021000.

It is not an unprimeable number, because it can be changed into a prime (211022021611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342176 + ... + 1491133.

It is an arithmetic number, because the mean of its divisors is an integer number (26774779500).

Almost surely, 2^211022021011 is an apocalyptic number.

211022021011 is a deficient number, since it is larger than the sum of its proper divisors (3176214989).

211022021011 is a wasteful number, since it uses less digits than its factorization.

211022021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834429.

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

Adding to 211022021011 its reverse (110120220112), we get a palindrome (321142241123).

The spelling of 211022021011 in words is "two hundred eleven billion, twenty-two million, twenty-one thousand, eleven".