21110101233330 has 64 divisors (see below), whose sum is σ = 50682379207680. Its totient is φ = 5627345648064.

The previous prime is 21110101233251. The next prime is 21110101233341. The reversal of 21110101233330 is 3333210101112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21110101233297 and 21110101233306.

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, 1423753377 + ... + 1423768203.

It is an arithmetic number, because the mean of its divisors is an integer number (791912175120).

Almost surely, 2^{21110101233330} is an apocalyptic number.

21110101233330 is an abundant number, since it is smaller than the sum of its proper divisors (29572277974350).

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

21110101233330 is a wasteful number, since it uses less digits than its factorization.

21110101233330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28623.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 21110101233330 its reverse (3333210101112), we get a palindrome (24443311334442).

The spelling of 21110101233330 in words is "twenty-one trillion, one hundred ten billion, one hundred one million, two hundred thirty-three thousand, three hundred thirty".