2121111203230 has 16 divisors (see below), whose sum is σ = 3840862445280. Its totient is φ = 843363974752.

The previous prime is 2121111203213. The next prime is 2121111203251. The reversal of 2121111203230 is 323021111212.

It is a super-2 number, since 2×2121111203230² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121111203198 and 2121111203207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635061565 + ... + 635064904.

It is an arithmetic number, because the mean of its divisors is an integer number (240053902830).

Almost surely, 2^{2121111203230} is an apocalyptic number.

2121111203230 is a deficient number, since it is larger than the sum of its proper divisors (1719751242050).

2121111203230 is a wasteful number, since it uses less digits than its factorization.

2121111203230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270126643.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2121111203230 its reverse (323021111212), we get a palindrome (2444132314442).

The spelling of 2121111203230 in words is "two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred three thousand, two hundred thirty".