20111102182 has 16 divisors (see below), whose sum is σ = 30552599952. Its totient is φ = 9927544480.

The previous prime is 20111102171. The next prime is 20111102183. The reversal of 20111102182 is 28120111102.

It is a super-2 number, since 2×20111102182² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111102183) 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, 97669 + ... + 223072.

It is an arithmetic number, because the mean of its divisors is an integer number (1909537497).

Almost surely, 2^20111102182 is an apocalyptic number.

20111102182 is a deficient number, since it is larger than the sum of its proper divisors (10441497770).

20111102182 is a wasteful number, since it uses less digits than its factorization.

20111102182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321143.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 20111102182 its reverse (28120111102), we get a palindrome (48231213284).

The spelling of 20111102182 in words is "twenty billion, one hundred eleven million, one hundred two thousand, one hundred eighty-two".