201212210133131 has 4 divisors (see below), whose sum is σ = 201216212574552. Its totient is φ = 201208207691712.

The previous prime is 201212210133113. The next prime is 201212210133149. The reversal of 201212210133131 is 131331012212102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (201212210133113) and next prime (201212210133149).

It is a cyclic number.

It is not a de Polignac number, because 201212210133131 - 2¹⁴ = 201212210116747 is a prime.

It is a super-2 number, since 2×201212210133131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201212210133097 and 201212210133106.

It is not an unprimeable number, because it can be changed into a prime (201212210133191) 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 3 ways as a sum of consecutive naturals, for example, 2001145301 + ... + 2001245846.

It is an arithmetic number, because the mean of its divisors is an integer number (50304053143638).

Almost surely, 2^{201212210133131} is an apocalyptic number.

201212210133131 is a deficient number, since it is larger than the sum of its proper divisors (4002441421).

201212210133131 is an equidigital number, since it uses as much as digits as its factorization.

201212210133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002441420.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 201212210133131 its reverse (131331012212102), we get a palindrome (332543222345233).

The spelling of 201212210133131 in words is "two hundred one trillion, two hundred twelve billion, two hundred ten million, one hundred thirty-three thousand, one hundred thirty-one".