131220222133 has 48 divisors (see below), whose sum is σ = 179470710720. Its totient is φ = 94310092800.

The previous prime is 131220222083. The next prime is 131220222169. The reversal of 131220222133 is 331222022131.

It is not a de Polignac number, because 131220222133 - 2¹³ = 131220213941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131220225133) 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, 9866218 + ... + 9879508.

It is an arithmetic number, because the mean of its divisors is an integer number (3738973140).

Almost surely, 2^131220222133 is an apocalyptic number.

131220222133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131220222133 is a deficient number, since it is larger than the sum of its proper divisors (48250488587).

131220222133 is a wasteful number, since it uses less digits than its factorization.

131220222133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14738 (or 14731 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131220222133 its reverse (331222022131), we get a palindrome (462442244264).

It can be divided in two parts, 131220 and 222133, that added together give a palindrome (353353).

The spelling of 131220222133 in words is "one hundred thirty-one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred thirty-three".