21212110002230 has 32 divisors (see below), whose sum is σ = 43640157589056. Its totient is φ = 7272087260544.

The previous prime is 21212110002229. The next prime is 21212110002269. The reversal of 21212110002230 is 3220001121212.

It is a super-3 number, since 3×21212110002230³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 21212110002199 and 21212110002208.

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, 12447209 + ... + 14048388.

It is an arithmetic number, because the mean of its divisors is an integer number (1363754924658).

Almost surely, 2^{21212110002230} is an apocalyptic number.

21212110002230 is an abundant number, since it is smaller than the sum of its proper divisors (22428047586826).

21212110002230 is a wasteful number, since it uses less digits than its factorization.

21212110002230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26507048.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21212110002230 its reverse (3220001121212), we get a palindrome (24432111123442).

The spelling of 21212110002230 in words is "twenty-one trillion, two hundred twelve billion, one hundred ten million, two thousand, two hundred thirty".