21112201033230 has 64 divisors (see below), whose sum is σ = 51397764364800. Its totient is φ = 5549023616640.

The previous prime is 21112201033207. The next prime is 21112201033267. The reversal of 21112201033230 is 3233010221112.

It is a junction number, because it is equal to n+sod(n) for n = 21112201033197 and 21112201033206.

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, 5960341 + ... + 8817599.

It is an arithmetic number, because the mean of its divisors is an integer number (803090068200).

Almost surely, 2^{21112201033230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21112201033230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25698882182400).

21112201033230 is an abundant number, since it is smaller than the sum of its proper divisors (30285563331570).

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

21112201033230 is a wasteful number, since it uses less digits than its factorization.

21112201033230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860809.

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

Adding to 21112201033230 its reverse (3233010221112), we get a palindrome (24345211254342).

The spelling of 21112201033230 in words is "twenty-one trillion, one hundred twelve billion, two hundred one million, thirty-three thousand, two hundred thirty".