131201211022 has 32 divisors (see below), whose sum is σ = 231903961344. Its totient is φ = 54502156800.

The previous prime is 131201211007. The next prime is 131201211023. The reversal of 131201211022 is 220112102131.

It is a junction number, because it is equal to n+sod(n) for n = 131201210987 and 131201211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201211023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752979 + ... + 910702.

It is an arithmetic number, because the mean of its divisors is an integer number (7246998792).

Almost surely, 2^131201211022 is an apocalyptic number.

131201211022 is a deficient number, since it is larger than the sum of its proper divisors (100702750322).

131201211022 is a wasteful number, since it uses less digits than its factorization.

131201211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663864.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131201211022 its reverse (220112102131), we get a palindrome (351313313153).

The spelling of 131201211022 in words is "one hundred thirty-one billion, two hundred one million, two hundred eleven thousand, twenty-two".