1222120313331 has 16 divisors (see below), whose sum is σ = 1703555612160. Its totient is φ = 779323075080.

The previous prime is 1222120313327. The next prime is 1222120313341. The reversal of 1222120313331 is 1333130212221.

It is not a de Polignac number, because 1222120313331 - 2² = 1222120313327 is a prime.

It is a super-2 number, since 2×1222120313331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222120313341) 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 15 ways as a sum of consecutive naturals, for example, 16704415 + ... + 16777416.

It is an arithmetic number, because the mean of its divisors is an integer number (106472225760).

Almost surely, 2^{1222120313331} is an apocalyptic number.

1222120313331 is a deficient number, since it is larger than the sum of its proper divisors (481435298829).

1222120313331 is an frugal number, since it uses more digits than its factorization.

1222120313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33481903 (or 33481857 counting only the distinct ones).

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

Adding to 1222120313331 its reverse (1333130212221), we get a palindrome (2555250525552).

The spelling of 1222120313331 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, three hundred thirteen thousand, three hundred thirty-one".