21223121130130 has 128 divisors (see below), whose sum is σ = 41142816000000. Its totient is φ = 7858773508608.

The previous prime is 21223121130089. The next prime is 21223121130143. The reversal of 21223121130130 is 3103112132212.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 869111061 + ... + 869135479.

It is an arithmetic number, because the mean of its divisors is an integer number (321428250000).

Almost surely, 2^{21223121130130} is an apocalyptic number.

21223121130130 is a deficient number, since it is larger than the sum of its proper divisors (19919694869870).

21223121130130 is a wasteful number, since it uses less digits than its factorization.

21223121130130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25136.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21223121130130 its reverse (3103112132212), we get a palindrome (24326233262342).

The spelling of 21223121130130 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred twenty-one million, one hundred thirty thousand, one hundred thirty".