21100213302330 has 32 divisors (see below), whose sum is σ = 50842266971328. Its totient is φ = 5604306320000.

The previous prime is 21100213302319. The next prime is 21100213302331. The reversal of 21100213302330 is 3320331200112.

It is a junction number, because it is equal to n+sod(n) for n = 21100213302297 and 21100213302306.

It is not an unprimeable number, because it can be changed into a prime (21100213302331) 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, 1401069051 + ... + 1401084110.

It is an arithmetic number, because the mean of its divisors is an integer number (1588820842854).

Almost surely, 2^{21100213302330} is an apocalyptic number.

21100213302330 is an abundant number, since it is smaller than the sum of its proper divisors (29742053668998).

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

21100213302330 is a wasteful number, since it uses less digits than its factorization.

21100213302330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802153422.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21100213302330 its reverse (3320331200112), we get a palindrome (24420544502442).

The spelling of 21100213302330 in words is "twenty-one trillion, one hundred billion, two hundred thirteen million, three hundred two thousand, three hundred thirty".