21000213330222 has 32 divisors (see below), whose sum is σ = 48073326048000. Its totient is φ = 5990956147008.

The previous prime is 21000213330203. The next prime is 21000213330359. The reversal of 21000213330222 is 22203331200012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379338847 + ... + 379394202.

It is an arithmetic number, because the mean of its divisors is an integer number (1502291439000).

Almost surely, 2^{21000213330222} is an apocalyptic number.

21000213330222 is an abundant number, since it is smaller than the sum of its proper divisors (27073112717778).

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

21000213330222 is a wasteful number, since it uses less digits than its factorization.

21000213330222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758733720.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21000213330222 its reverse (22203331200012), we get a palindrome (43203544530234).

The spelling of 21000213330222 in words is "twenty-one trillion, two hundred thirteen million, three hundred thirty thousand, two hundred twenty-two".