21333211233330 has 16 divisors (see below), whose sum is σ = 51199706960064. Its totient is φ = 5688856328880.

The previous prime is 21333211233311. The next prime is 21333211233379. The reversal of 21333211233330 is 3333211233312.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 711107041111 = 21333211233330 / (2 + 1 + 3 + 3 + 3 + 2 + 1 + 1 + 2 + 3 + 3 + 3 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355553520526 + ... + 355553520585.

It is an arithmetic number, because the mean of its divisors is an integer number (3199981685004).

Almost surely, 2^{21333211233330} is an apocalyptic number.

21333211233330 is an abundant number, since it is smaller than the sum of its proper divisors (29866495726734).

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

21333211233330 is a wasteful number, since it uses less digits than its factorization.

21333211233330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711107041121.

The product of its (nonzero) digits is 17496, while the sum is 30.

Adding to 21333211233330 its reverse (3333211233312), we get a palindrome (24666422466642).

The spelling of 21333211233330 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred eleven million, two hundred thirty-three thousand, three hundred thirty".