1233120340221 has 48 divisors (see below), whose sum is σ = 2153772546048. Its totient is φ = 619918034400.

The previous prime is 1233120340141. The next prime is 1233120340259. The reversal of 1233120340221 is 1220430213321.

It is not a de Polignac number, because 1233120340221 - 2⁷ = 1233120340093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1233120340191 and 1233120340200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233120360221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12249835 + ... + 12350088.

It is an arithmetic number, because the mean of its divisors is an integer number (44870261376).

Almost surely, 2^{1233120340221} is an apocalyptic number.

1233120340221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1233120340221 is a deficient number, since it is larger than the sum of its proper divisors (920652205827).

1233120340221 is a wasteful number, since it uses less digits than its factorization.

1233120340221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24599982 (or 24599975 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1233120340221 its reverse (1220430213321), we get a palindrome (2453550553542).

The spelling of 1233120340221 in words is "one trillion, two hundred thirty-three billion, one hundred twenty million, three hundred forty thousand, two hundred twenty-one".