210020120011 has 16 divisors (see below), whose sum is σ = 233816663808. Its totient is φ = 187333660800.

The previous prime is 210020119921. The next prime is 210020120027. The reversal of 210020120011 is 110021020012.

It is not a de Polignac number, because 210020120011 - 2²⁷ = 209885902283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210020120011.

It is not an unprimeable number, because it can be changed into a prime (210020120081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112060 + ... + 657721.

It is an arithmetic number, because the mean of its divisors is an integer number (14613541488).

Almost surely, 2^210020120011 is an apocalyptic number.

210020120011 is a deficient number, since it is larger than the sum of its proper divisors (23796543797).

210020120011 is a wasteful number, since it uses less digits than its factorization.

210020120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770502.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210020120011 its reverse (110021020012), we get a palindrome (320041140023).

Subtracting from 210020120011 its reverse (110021020012), we obtain a palindrome (99999099999).

It can be divided in two parts, 2100201 and 20011, that added together give a palindrome (2120212).

The spelling of 210020120011 in words is "two hundred ten billion, twenty million, one hundred twenty thousand, eleven".