21333322442210 has 16 divisors (see below), whose sum is σ = 40658802772536. Its totient is φ = 8031368448768.

The previous prime is 21333322442207. The next prime is 21333322442273. The reversal of 21333322442210 is 1224422333312.

It can be written as a sum of positive squares in 4 ways, for example, as 15112104230041 + 6221218212169 = 3887429^2 + 2494237^2 .

It is a super-2 number, since 2×21333322442210² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

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, 62745065837 + ... + 62745066176.

Almost surely, 2^{21333322442210} is an apocalyptic number.

21333322442210 is a deficient number, since it is larger than the sum of its proper divisors (19325480330326).

21333322442210 is a wasteful number, since it uses less digits than its factorization.

21333322442210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125490132037.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 21333322442210 its reverse (1224422333312), we get a palindrome (22557744775522).

The spelling of 21333322442210 in words is "twenty-one trillion, three hundred thirty-three billion, three hundred twenty-two million, four hundred forty-two thousand, two hundred ten".