201131222221331 has 8 divisors (see below), whose sum is σ = 205808922022704. Its totient is φ = 196453532852640.

The previous prime is 201131222221271. The next prime is 201131222221343. The reversal of 201131222221331 is 133122222131102.

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

It is a cyclic number.

It is not a de Polignac number, because 201131222221331 - 2³⁴ = 201114042352147 is a prime.

It is a super-2 number, since 2×201131222221331² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201131222221331.

It is not an unprimeable number, because it can be changed into a prime (201131222221931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47435165 + ... + 51501041.

It is an arithmetic number, because the mean of its divisors is an integer number (25726115252838).

Almost surely, 2^{201131222221331} is an apocalyptic number.

201131222221331 is a deficient number, since it is larger than the sum of its proper divisors (4677699801373).

201131222221331 is a wasteful number, since it uses less digits than its factorization.

201131222221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216341.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 201131222221331 its reverse (133122222131102), we get a palindrome (334253444352433).

The spelling of 201131222221331 in words is "two hundred one trillion, one hundred thirty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred thirty-one".