210210121012 has 24 divisors (see below), whose sum is σ = 389580052680. Its totient is φ = 98903854080.

The previous prime is 210210121007. The next prime is 210210121087. The reversal of 210210121012 is 210121012012.

210210121012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24574951696 + 185635169316 = 156764^2 + 430854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210210120983 and 210210121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78664 + ... + 653152.

It is an arithmetic number, because the mean of its divisors is an integer number (16232502195).

Almost surely, 2^210210121012 is an apocalyptic number.

It is an amenable number.

210210121012 is a deficient number, since it is larger than the sum of its proper divisors (179369931668).

210210121012 is a wasteful number, since it uses less digits than its factorization.

210210121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579891 (or 579889 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210210121012 its reverse (210121012012), we get a palindrome (420331133024).

The spelling of 210210121012 in words is "two hundred ten billion, two hundred ten million, one hundred twenty-one thousand, twelve".