210021112010 has 8 divisors (see below), whose sum is σ = 378038001636. Its totient is φ = 84008444800.

The previous prime is 210021111977. The next prime is 210021112013. The reversal of 210021112010 is 10211120012.

It can be written as a sum of positive squares in 2 ways, for example, as 180073771201 + 29947340809 = 424351^2 + 173053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 210021111982 and 210021112000.

It is not an unprimeable number, because it can be changed into a prime (210021112013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10501055591 + ... + 10501055610.

Almost surely, 2^210021112010 is an apocalyptic number.

210021112010 is a deficient number, since it is larger than the sum of its proper divisors (168016889626).

210021112010 is a wasteful number, since it uses less digits than its factorization.

210021112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21002111208.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210021112010 its reverse (10211120012), we get a palindrome (220232232022).

The spelling of 210021112010 in words is "two hundred ten billion, twenty-one million, one hundred twelve thousand, ten".