21010213200230 has 16 divisors (see below), whose sum is σ = 37831438139040. Its totient is φ = 8401184307072.

The previous prime is 21010213200209. The next prime is 21010213200239. The reversal of 21010213200230 is 3200231201012.

It is a junction number, because it is equal to n+sod(n) for n = 21010213200199 and 21010213200208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010213200239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362591210 + ... + 362649149.

It is an arithmetic number, because the mean of its divisors is an integer number (2364464883690).

Almost surely, 2^{21010213200230} is an apocalyptic number.

21010213200230 is a deficient number, since it is larger than the sum of its proper divisors (16821224938810).

21010213200230 is a wasteful number, since it uses less digits than its factorization.

21010213200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725243263.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21010213200230 its reverse (3200231201012), we get a palindrome (24210444401242).

The spelling of 21010213200230 in words is "twenty-one trillion, ten billion, two hundred thirteen million, two hundred thousand, two hundred thirty".