21013022182 has 8 divisors (see below), whose sum is σ = 31520969136. Its totient is φ = 10506032472.

The previous prime is 21013022141. The next prime is 21013022183. The reversal of 21013022182 is 28122031012.

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

It is a super-2 number, since 2×21013022182² (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 (21013022183) 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, 181653 + ... + 273904.

It is an arithmetic number, because the mean of its divisors is an integer number (3940121142).

Almost surely, 2^21013022182 is an apocalyptic number.

21013022182 is a deficient number, since it is larger than the sum of its proper divisors (10507946954).

21013022182 is a wasteful number, since it uses less digits than its factorization.

21013022182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478622.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 21013022182 its reverse (28122031012), we get a palindrome (49135053194).

The spelling of 21013022182 in words is "twenty-one billion, thirteen million, twenty-two thousand, one hundred eighty-two".