20021102182 has 16 divisors (see below), whose sum is σ = 30100804272. Its totient is φ = 9987523200.

The previous prime is 20021102177. The next prime is 20021102183. The reversal of 20021102182 is 28120112002.

It is a super-2 number, since 2×20021102182² (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 (20021102183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295073 + ... + 2303779.

It is an arithmetic number, because the mean of its divisors is an integer number (1881300267).

Almost surely, 2^20021102182 is an apocalyptic number.

20021102182 is a deficient number, since it is larger than the sum of its proper divisors (10079702090).

20021102182 is a wasteful number, since it uses less digits than its factorization.

20021102182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11223.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20021102182 its reverse (28120112002), we get a palindrome (48141214184).

The spelling of 20021102182 in words is "twenty billion, twenty-one million, one hundred two thousand, one hundred eighty-two".