211020100989 has 8 divisors (see below), whose sum is σ = 297910730880. Its totient is φ = 132404769216.

The previous prime is 211020100981. The next prime is 211020100999. The reversal of 211020100989 is 989001020112.

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

It is not a de Polignac number, because 211020100989 - 2³ = 211020100981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020100981) 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, 2068824469 + ... + 2068824570.

It is an arithmetic number, because the mean of its divisors is an integer number (37238841360).

Almost surely, 2^211020100989 is an apocalyptic number.

It is an amenable number.

211020100989 is a deficient number, since it is larger than the sum of its proper divisors (86890629891).

211020100989 is a wasteful number, since it uses less digits than its factorization.

211020100989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137649059.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 211020100989 in words is "two hundred eleven billion, twenty million, one hundred thousand, nine hundred eighty-nine".