21330220221230 has 32 divisors (see below), whose sum is σ = 38452611824640. Its totient is φ = 8519155524000.

The previous prime is 21330220221227. The next prime is 21330220221341. The reversal of 21330220221230 is 3212202203312.

It is a junction number, because it is equal to n+sod(n) for n = 21330220221196 and 21330220221205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40888097 + ... + 41406483.

It is an arithmetic number, because the mean of its divisors is an integer number (1201644119520).

Almost surely, 2^{21330220221230} is an apocalyptic number.

21330220221230 is a deficient number, since it is larger than the sum of its proper divisors (17122391603410).

21330220221230 is a wasteful number, since it uses less digits than its factorization.

21330220221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524624.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21330220221230 its reverse (3212202203312), we get a palindrome (24542422424542).

The spelling of 21330220221230 in words is "twenty-one trillion, three hundred thirty billion, two hundred twenty million, two hundred twenty-one thousand, two hundred thirty".