2121440442230 has 16 divisors (see below), whose sum is σ = 3827212652304. Its totient is φ = 846660653280.

The previous prime is 2121440442197. The next prime is 2121440442257. The reversal of 2121440442230 is 322440441212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2121440442193 and 2121440442202.

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, 239435801 + ... + 239444660.

It is an arithmetic number, because the mean of its divisors is an integer number (239200790769).

Almost surely, 2^{2121440442230} is an apocalyptic number.

2121440442230 is a deficient number, since it is larger than the sum of its proper divisors (1705772210074).

2121440442230 is a wasteful number, since it uses less digits than its factorization.

2121440442230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478880911.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 2121440442230 its reverse (322440441212), we get a palindrome (2443880883442).

The spelling of 2121440442230 in words is "two trillion, one hundred twenty-one billion, four hundred forty million, four hundred forty-two thousand, two hundred thirty".