22131220212233 has 16 divisors (see below), whose sum is σ = 24255748178496. Its totient is φ = 20025646967040.

The previous prime is 22131220212203. The next prime is 22131220212247. The reversal of 22131220212233 is 33221202213122.

It is not a de Polignac number, because 22131220212233 - 2⁶ = 22131220212169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131220212203) 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, 2354060 + ... + 7057197.

It is an arithmetic number, because the mean of its divisors is an integer number (1515984261156).

Almost surely, 2^{22131220212233} is an apocalyptic number.

It is an amenable number.

22131220212233 is a deficient number, since it is larger than the sum of its proper divisors (2124527966263).

22131220212233 is a wasteful number, since it uses less digits than its factorization.

22131220212233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9412264.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 22131220212233 its reverse (33221202213122), we get a palindrome (55352422425355).

The spelling of 22131220212233 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred twenty million, two hundred twelve thousand, two hundred thirty-three".