220102112011 has 4 divisors (see below), whose sum is σ = 220103052112. Its totient is φ = 220101171912.

The previous prime is 220102111967. The next prime is 220102112017. The reversal of 220102112011 is 110211201022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 220102112011 - 2²¹ = 220100014859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220102111982 and 220102112000.

It is not an unprimeable number, because it can be changed into a prime (220102112017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191425 + ... + 690541.

It is an arithmetic number, because the mean of its divisors is an integer number (55025763028).

Almost surely, 2^220102112011 is an apocalyptic number.

220102112011 is a deficient number, since it is larger than the sum of its proper divisors (940101).

220102112011 is an equidigital number, since it uses as much as digits as its factorization.

220102112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940100.

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

Adding to 220102112011 its reverse (110211201022), we get a palindrome (330313313033).

The spelling of 220102112011 in words is "two hundred twenty billion, one hundred two million, one hundred twelve thousand, eleven".