210002210020121 has 8 divisors (see below), whose sum is σ = 210278192196960. Its totient is φ = 209726281104928.

The previous prime is 210002210020103. The next prime is 210002210020139. The reversal of 210002210020121 is 121020012200012.

It is an interprime number because it is at equal distance from previous prime (210002210020103) and next prime (210002210020139).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210002210020121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210002210020096 and 210002210020105.

It is not an unprimeable number, because it can be changed into a prime (210002210020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5421476 + ... + 21198981.

It is an arithmetic number, because the mean of its divisors is an integer number (26284774024620).

Almost surely, 2^{210002210020121} is an apocalyptic number.

It is an amenable number.

210002210020121 is a deficient number, since it is larger than the sum of its proper divisors (275982176839).

210002210020121 is an equidigital number, since it uses as much as digits as its factorization.

210002210020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26630823.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210002210020121 its reverse (121020012200012), we get a palindrome (331022222220133).

The spelling of 210002210020121 in words is "two hundred ten trillion, two billion, two hundred ten million, twenty thousand, one hundred twenty-one".