210121300132 has 12 divisors (see below), whose sum is σ = 370180143900. Its totient is φ = 104355544736.

The previous prime is 210121300091. The next prime is 210121300133. The reversal of 210121300132 is 231003121012.

It can be written as a sum of positive squares in 2 ways, for example, as 90255781476 + 119865518656 = 300426^2 + 346216^2 .

It is not an unprimeable number, because it can be changed into a prime (210121300133) 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, 176275663 + ... + 176276854.

It is an arithmetic number, because the mean of its divisors is an integer number (30848345325).

Almost surely, 2^210121300132 is an apocalyptic number.

It is an amenable number.

210121300132 is a deficient number, since it is larger than the sum of its proper divisors (160058843768).

210121300132 is a wasteful number, since it uses less digits than its factorization.

210121300132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352552670 (or 352552668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 210121300132 its reverse (231003121012), we get a palindrome (441124421144).

The spelling of 210121300132 in words is "two hundred ten billion, one hundred twenty-one million, three hundred thousand, one hundred thirty-two".