211120021011 has 8 divisors (see below), whose sum is σ = 286108006864. Its totient is φ = 138439357920.

The previous prime is 211120021003. The next prime is 211120021031. The reversal of 211120021011 is 110120021112.

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

It is not a de Polignac number, because 211120021011 - 2³ = 211120021003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211120021031) 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, 576830476 + ... + 576830841.

It is an arithmetic number, because the mean of its divisors is an integer number (35763500858).

Almost surely, 2^211120021011 is an apocalyptic number.

211120021011 is a deficient number, since it is larger than the sum of its proper divisors (74987985853).

211120021011 is a wasteful number, since it uses less digits than its factorization.

211120021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153661381.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211120021011 its reverse (110120021112), we get a palindrome (321240042123).

The spelling of 211120021011 in words is "two hundred eleven billion, one hundred twenty million, twenty-one thousand, eleven".