2201211042123 has 4 divisors (see below), whose sum is σ = 2934948056168. Its totient is φ = 1467474028080.

The previous prime is 2201211042101. The next prime is 2201211042133. The reversal of 2201211042123 is 3212401121022.

It is a happy number.

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

It is not a de Polignac number, because 2201211042123 - 2¹⁸ = 2201210779979 is a prime.

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 2201211042123.

It is not an unprimeable number, because it can be changed into a prime (2201211042133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366868507018 + ... + 366868507023.

It is an arithmetic number, because the mean of its divisors is an integer number (733737014042).

Almost surely, 2^{2201211042123} is an apocalyptic number.

2201211042123 is a deficient number, since it is larger than the sum of its proper divisors (733737014045).

2201211042123 is an equidigital number, since it uses as much as digits as its factorization.

2201211042123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733737014044.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2201211042123 its reverse (3212401121022), we get a palindrome (5413612163145).

The spelling of 2201211042123 in words is "two trillion, two hundred one billion, two hundred eleven million, forty-two thousand, one hundred twenty-three".