1241202204221 has 12 divisors (see below), whose sum is σ = 1506623440032. Its totient is φ = 1017631619928.

The previous prime is 1241202204169. The next prime is 1241202204251. The reversal of 1241202204221 is 1224022021421.

It is a de Polignac number, because none of the positive numbers 2^k-1241202204221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241202204251) 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 11 ways as a sum of consecutive naturals, for example, 550665335 + ... + 550667588.

It is an arithmetic number, because the mean of its divisors is an integer number (125551953336).

Almost surely, 2^{1241202204221} is an apocalyptic number.

It is an amenable number.

1241202204221 is a deficient number, since it is larger than the sum of its proper divisors (265421235811).

1241202204221 is a wasteful number, since it uses less digits than its factorization.

1241202204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101332960 (or 1101332953 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1241202204221 its reverse (1224022021421), we get a palindrome (2465224225642).

The spelling of 1241202204221 in words is "one trillion, two hundred forty-one billion, two hundred two million, two hundred four thousand, two hundred twenty-one".