210011002302121 has 4 divisors (see below), whose sum is σ = 222364590672852. Its totient is φ = 197657413931392.

The previous prime is 210011002301927. The next prime is 210011002302181. The reversal of 210011002302121 is 121203200110012.

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 173607107760025 + 36403894542096 = 13176005^2 + 6033564^2 .

It is a cyclic number.

It is not a de Polignac number, because 210011002302121 - 2¹³ = 210011002293929 is a prime.

It is a super-2 number, since 2×210011002302121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210011002302095 and 210011002302104.

It is not an unprimeable number, because it can be changed into a prime (210011002302181) 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, 6176794185340 + ... + 6176794185373.

It is an arithmetic number, because the mean of its divisors is an integer number (55591147668213).

Almost surely, 2^{210011002302121} is an apocalyptic number.

It is an amenable number.

210011002302121 is a deficient number, since it is larger than the sum of its proper divisors (12353588370731).

210011002302121 is a wasteful number, since it uses less digits than its factorization.

210011002302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12353588370730.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210011002302121 its reverse (121203200110012), we get a palindrome (331214202412133).

The spelling of 210011002302121 in words is "two hundred ten trillion, eleven billion, two million, three hundred two thousand, one hundred twenty-one".