1221131013230 has 8 divisors (see below), whose sum is σ = 2198035823832. Its totient is φ = 488452405288.

The previous prime is 1221131013197. The next prime is 1221131013233. The reversal of 1221131013230 is 323101311221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221131013233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61056550652 + ... + 61056550671.

It is an arithmetic number, because the mean of its divisors is an integer number (274754477979).

Almost surely, 2^{1221131013230} is an apocalyptic number.

1221131013230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221131013230 is a deficient number, since it is larger than the sum of its proper divisors (976904810602).

1221131013230 is a wasteful number, since it uses less digits than its factorization.

1221131013230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122113101330.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1221131013230 its reverse (323101311221), we get a palindrome (1544232324451).

The spelling of 1221131013230 in words is "one trillion, two hundred twenty-one billion, one hundred thirty-one million, thirteen thousand, two hundred thirty".