2102121232230 has 64 divisors (see below), whose sum is σ = 5208114640896. Its totient is φ = 542453856000.

The previous prime is 2102121232213. The next prime is 2102121232231. The reversal of 2102121232230 is 322321212012.

It is a junction number, because it is equal to n+sod(n) for n = 2102121232197 and 2102121232206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102121232231) 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, 21416365 + ... + 21514295.

It is an arithmetic number, because the mean of its divisors is an integer number (81376791264).

Almost surely, 2^{2102121232230} is an apocalyptic number.

2102121232230 is an abundant number, since it is smaller than the sum of its proper divisors (3105993408666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102121232230 is a wasteful number, since it uses less digits than its factorization.

2102121232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121053.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2102121232230 its reverse (322321212012), we get a palindrome (2424442444242).

The spelling of 2102121232230 in words is "two trillion, one hundred two billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred thirty".