210002001230121 has 32 divisors (see below), whose sum is σ = 282387538137600. Its totient is φ = 138812433504000.

The previous prime is 210002001230089. The next prime is 210002001230129. The reversal of 210002001230121 is 121032100200012.

It is not a de Polignac number, because 210002001230121 - 2⁵ = 210002001230089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210002001230121.

It is not an unprimeable number, because it can be changed into a prime (210002001230129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 770171191 + ... + 770443811.

It is an arithmetic number, because the mean of its divisors is an integer number (8824610566800).

Almost surely, 2^{210002001230121} is an apocalyptic number.

It is an amenable number.

210002001230121 is a deficient number, since it is larger than the sum of its proper divisors (72385536907479).

210002001230121 is a wasteful number, since it uses less digits than its factorization.

210002001230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275857.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 210002001230121 its reverse (121032100200012), we get a palindrome (331034101430133).

The spelling of 210002001230121 in words is "two hundred ten trillion, two billion, one million, two hundred thirty thousand, one hundred twenty-one".