210042121310 has 64 divisors (see below), whose sum is σ = 455733734400. Its totient is φ = 68088356352.

The previous prime is 210042121297. The next prime is 210042121319. The reversal of 210042121310 is 13121240012.

It is a super-2 number, since 2×210042121310² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210042121319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512006 + ... + 825974.

It is an arithmetic number, because the mean of its divisors is an integer number (7120839600).

Almost surely, 2^210042121310 is an apocalyptic number.

210042121310 is an abundant number, since it is smaller than the sum of its proper divisors (245691613090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210042121310 is a wasteful number, since it uses less digits than its factorization.

210042121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314505.

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

Adding to 210042121310 its reverse (13121240012), we get a palindrome (223163361322).

The spelling of 210042121310 in words is "two hundred ten billion, forty-two million, one hundred twenty-one thousand, three hundred ten".