21122213032 has 32 divisors (see below), whose sum is σ = 40258900800. Its totient is φ = 10387315584.

The previous prime is 21122213009. The next prime is 21122213033. The reversal of 21122213032 is 23031222112.

It is a super-2 number, since 2×21122213032² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122213033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159283 + ... + 260029.

It is an arithmetic number, because the mean of its divisors is an integer number (1258090650).

Almost surely, 2^21122213032 is an apocalyptic number.

It is an amenable number.

21122213032 is a deficient number, since it is larger than the sum of its proper divisors (19136687768).

21122213032 is a wasteful number, since it uses less digits than its factorization.

21122213032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101185 (or 101181 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21122213032 its reverse (23031222112), we get a palindrome (44153435144).

The spelling of 21122213032 in words is "twenty-one billion, one hundred twenty-two million, two hundred thirteen thousand, thirty-two".