210032032121 has 4 divisors (see below), whose sum is σ = 210034217892. Its totient is φ = 210029846352.

The previous prime is 210032032117. The next prime is 210032032163. The reversal of 210032032121 is 121230230012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69031782121 + 141000250000 = 262739^2 + 375500^2 .

It is a cyclic number.

It is not a de Polignac number, because 210032032121 - 2² = 210032032117 is a prime.

It is a super-2 number, since 2×210032032121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210032032121.

It is not an unprimeable number, because it can be changed into a prime (210032032421) 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, 941786 + ... + 1143251.

It is an arithmetic number, because the mean of its divisors is an integer number (52508554473).

Almost surely, 2^210032032121 is an apocalyptic number.

It is an amenable number.

210032032121 is a deficient number, since it is larger than the sum of its proper divisors (2185771).

210032032121 is a wasteful number, since it uses less digits than its factorization.

210032032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185770.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210032032121 its reverse (121230230012), we get a palindrome (331262262133).

The spelling of 210032032121 in words is "two hundred ten billion, thirty-two million, thirty-two thousand, one hundred twenty-one".