2201210131 has 4 divisors (see below), whose sum is σ = 2202190264. Its totient is φ = 2200230000.

The previous prime is 2201210129. The next prime is 2201210153. The reversal of 2201210131 is 1310121022.

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

It is a cyclic number.

It is not a de Polignac number, because 2201210131 - 2¹ = 2201210129 is a prime.

It is a super-2 number, since 2×2201210131² = 9690652081634074322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201210111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486690 + ... + 491191.

It is an arithmetic number, because the mean of its divisors is an integer number (550547566).

Almost surely, 2^2201210131 is an apocalyptic number.

2201210131 is a deficient number, since it is larger than the sum of its proper divisors (980133).

2201210131 is an equidigital number, since it uses as much as digits as its factorization.

2201210131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980132.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2201210131 is about 46917.0558645787. The cubic root of 2201210131 is about 1300.8298707210.

Adding to 2201210131 its reverse (1310121022), we get a palindrome (3511331153).

The spelling of 2201210131 in words is "two billion, two hundred one million, two hundred ten thousand, one hundred thirty-one".