2231121302201 has 4 divisors (see below), whose sum is σ = 2433950511504. Its totient is φ = 2028292092900.

The previous prime is 2231121302177. The next prime is 2231121302209. The reversal of 2231121302201 is 1022031211322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231121302201 is a prime.

It is a super-3 number, since 3×2231121302201³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2231121302209) 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, 101414604635 + ... + 101414604656.

It is an arithmetic number, because the mean of its divisors is an integer number (608487627876).

Almost surely, 2^{2231121302201} is an apocalyptic number.

It is an amenable number.

2231121302201 is a deficient number, since it is larger than the sum of its proper divisors (202829209303).

2231121302201 is a wasteful number, since it uses less digits than its factorization.

2231121302201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202829209302.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2231121302201 its reverse (1022031211322), we get a palindrome (3253152513523).

The spelling of 2231121302201 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, three hundred two thousand, two hundred one".