1221132230313 has 16 divisors (see below), whose sum is σ = 1631850998400. Its totient is φ = 812251678464.

The previous prime is 1221132230291. The next prime is 1221132230369. The reversal of 1221132230313 is 3130322311221.

It is not a de Polignac number, because 1221132230313 - 2¹² = 1221132226217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1221132230393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5616963 + ... + 5830311.

It is an arithmetic number, because the mean of its divisors is an integer number (101990687400).

Almost surely, 2^{1221132230313} is an apocalyptic number.

It is an amenable number.

1221132230313 is a deficient number, since it is larger than the sum of its proper divisors (410718768087).

1221132230313 is a wasteful number, since it uses less digits than its factorization.

1221132230313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217648.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1221132230313 its reverse (3130322311221), we get a palindrome (4351454541534).

The spelling of 1221132230313 in words is "one trillion, two hundred twenty-one billion, one hundred thirty-two million, two hundred thirty thousand, three hundred thirteen".