21132100223130 has 32 divisors (see below), whose sum is σ = 54618351346944. Its totient is φ = 5201747747136.

The previous prime is 21132100223057. The next prime is 21132100223159. The reversal of 21132100223130 is 3132200123112.

It is a junction number, because it is equal to n+sod(n) for n = 21132100223097 and 21132100223106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27092435794 + ... + 27092436573.

It is an arithmetic number, because the mean of its divisors is an integer number (1706823479592).

Almost surely, 2^{21132100223130} is an apocalyptic number.

21132100223130 is an abundant number, since it is smaller than the sum of its proper divisors (33486251123814).

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

21132100223130 is a wasteful number, since it uses less digits than its factorization.

21132100223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54184872390.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21132100223130 its reverse (3132200123112), we get a palindrome (24264300346242).

The spelling of 21132100223130 in words is "twenty-one trillion, one hundred thirty-two billion, one hundred million, two hundred twenty-three thousand, one hundred thirty".