210120211010 has 8 divisors (see below), whose sum is σ = 378216379836. Its totient is φ = 84048084400.

The previous prime is 210120211009. The next prime is 210120211019. The reversal of 210120211010 is 10112021012.

It can be written as a sum of positive squares in 2 ways, for example, as 208674462481 + 1445748529 = 456809^2 + 38023^2 .

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 = 210120210982 and 210120211000.

It is not an unprimeable number, because it can be changed into a prime (210120211019) 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, 10506010541 + ... + 10506010560.

Almost surely, 2^210120211010 is an apocalyptic number.

210120211010 is a deficient number, since it is larger than the sum of its proper divisors (168096168826).

210120211010 is a wasteful number, since it uses less digits than its factorization.

210120211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21012021108.

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

Adding to 210120211010 its reverse (10112021012), we get a palindrome (220232232022).

The spelling of 210120211010 in words is "two hundred ten billion, one hundred twenty million, two hundred eleven thousand, ten".