21213110210230 has 32 divisors (see below), whose sum is σ = 38384535456000. Its totient is φ = 8440611534432.

The previous prime is 21213110210203. The next prime is 21213110210251. The reversal of 21213110210230 is 3201201131212.

It is a junction number, because it is equal to n+sod(n) for n = 21213110210198 and 21213110210207.

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, 7187401 + ... + 9699739.

It is an arithmetic number, because the mean of its divisors is an integer number (1199516733000).

Almost surely, 2^{21213110210230} is an apocalyptic number.

21213110210230 is a deficient number, since it is larger than the sum of its proper divisors (17171425245770).

21213110210230 is a wasteful number, since it uses less digits than its factorization.

21213110210230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516788.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21213110210230 its reverse (3201201131212), we get a palindrome (24414311341442).

The spelling of 21213110210230 in words is "twenty-one trillion, two hundred thirteen billion, one hundred ten million, two hundred ten thousand, two hundred thirty".