21122234230 has 64 divisors (see below), whose sum is σ = 40529134080. Its totient is φ = 7908423424.

The previous prime is 21122234227. The next prime is 21122234269. The reversal of 21122234230 is 3243222112.

It is a super-2 number, since 2×21122234230² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3076962 + ... + 3083818.

It is an arithmetic number, because the mean of its divisors is an integer number (633267720).

Almost surely, 2^21122234230 is an apocalyptic number.

21122234230 is a deficient number, since it is larger than the sum of its proper divisors (19406899850).

21122234230 is a wasteful number, since it uses less digits than its factorization.

21122234230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7173.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21122234230 its reverse (3243222112), we get a palindrome (24365456342).

The spelling of 21122234230 in words is "twenty-one billion, one hundred twenty-two million, two hundred thirty-four thousand, two hundred thirty".