1213210131201 has 8 divisors (see below), whose sum is σ = 1797348342560. Its totient is φ = 808806754116.

The previous prime is 1213210131193. The next prime is 1213210131209. The reversal of 1213210131201 is 1021310123121.

1213210131201 is a `hidden beast` number, since 12 + 1 + 321 + 0 + 131 + 201 = 666.

It is an interprime number because it is at equal distance from previous prime (1213210131193) and next prime (1213210131209).

It is not a de Polignac number, because 1213210131201 - 2³ = 1213210131193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213210131209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22466854255 + ... + 22466854308.

It is an arithmetic number, because the mean of its divisors is an integer number (224668542820).

Almost surely, 2^{1213210131201} is an apocalyptic number.

It is an amenable number.

1213210131201 is a deficient number, since it is larger than the sum of its proper divisors (584138211359).

1213210131201 is an equidigital number, since it uses as much as digits as its factorization.

1213210131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44933708572 (or 44933708566 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1213210131201 its reverse (1021310123121), we get a palindrome (2234520254322).

The spelling of 1213210131201 in words is "one trillion, two hundred thirteen billion, two hundred ten million, one hundred thirty-one thousand, two hundred one".