21113012022 has 16 divisors (see below), whose sum is σ = 42613420080. Its totient is φ = 6973104672.

The previous prime is 21113012009. The next prime is 21113012027. The reversal of 21113012022 is 22021031112.

It is a super-2 number, since 2×21113012022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21113011992 and 21113012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113012027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16140793 + ... + 16142100.

It is an arithmetic number, because the mean of its divisors is an integer number (2663338755).

Almost surely, 2^21113012022 is an apocalyptic number.

21113012022 is an abundant number, since it is smaller than the sum of its proper divisors (21500408058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113012022 is a wasteful number, since it uses less digits than its factorization.

21113012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32283007.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21113012022 its reverse (22021031112), we get a palindrome (43134043134).

The spelling of 21113012022 in words is "twenty-one billion, one hundred thirteen million, twelve thousand, twenty-two".