211121020222011 has 24 divisors (see below), whose sum is σ = 313782708251376. Its totient is φ = 136724491550400.

The previous prime is 211121020221983. The next prime is 211121020222031. The reversal of 211121020222011 is 110222020121112.

211121020222011 is a `hidden beast` number, since 21 + 1 + 1 + 210 + 202 + 220 + 11 = 666.

It is not a de Polignac number, because 211121020222011 - 2¹⁵ = 211121020189243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211121020222031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2191049445 + ... + 2191145798.

It is an arithmetic number, because the mean of its divisors is an integer number (13074279510474).

Almost surely, 2^{211121020222011} is an apocalyptic number.

211121020222011 is a deficient number, since it is larger than the sum of its proper divisors (102661688029365).

211121020222011 is a wasteful number, since it uses less digits than its factorization.

211121020222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382195403 (or 4382195400 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211121020222011 its reverse (110222020121112), we get a palindrome (321343040343123).

The spelling of 211121020222011 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, eleven".