21112233282 has 32 divisors (see below), whose sum is σ = 53618371200. Its totient is φ = 6032066544.

The previous prime is 21112233277. The next prime is 21112233283. The reversal of 21112233282 is 28233221112.

21112233282 is a `hidden beast` number, since 2 + 111 + 223 + 328 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21112233283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27925857 + ... + 27926612.

It is an arithmetic number, because the mean of its divisors is an integer number (1675574100).

Almost surely, 2^21112233282 is an apocalyptic number.

21112233282 is an abundant number, since it is smaller than the sum of its proper divisors (32506137918).

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

21112233282 is a wasteful number, since it uses less digits than its factorization.

21112233282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55852487 (or 55852481 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 21112233282 its reverse (28233221112), we get a palindrome (49345454394).

The spelling of 21112233282 in words is "twenty-one billion, one hundred twelve million, two hundred thirty-three thousand, two hundred eighty-two".