1222131002201 has 4 divisors (see below), whose sum is σ = 1294021061172. Its totient is φ = 1150240943232.

The previous prime is 1222131002177. The next prime is 1222131002231. The reversal of 1222131002201 is 1022001312221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 485563686976 + 736567315225 = 696824^2 + 858235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222131002201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 71890058953 = 1222131002201 / (1 + 2 + 2 + 2 + 1 + 3 + 1 + 0 + 0 + 2 + 2 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222131002201.

It is not an unprimeable number, because it can be changed into a prime (1222131002231) 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, 35945029460 + ... + 35945029493.

It is an arithmetic number, because the mean of its divisors is an integer number (323505265293).

Almost surely, 2^{1222131002201} is an apocalyptic number.

It is an amenable number.

1222131002201 is a deficient number, since it is larger than the sum of its proper divisors (71890058971).

1222131002201 is an equidigital number, since it uses as much as digits as its factorization.

1222131002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71890058970.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1222131002201 its reverse (1022001312221), we get a palindrome (2244132314422).

The spelling of 1222131002201 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-one million, two thousand, two hundred one".