2122401223111 has 8 divisors (see below), whose sum is σ = 2299187490320. Its totient is φ = 1959139588536.

The previous prime is 2122401223031. The next prime is 2122401223121. The reversal of 2122401223111 is 1113221042212.

It is a de Polignac number, because none of the positive numbers 2^k-2122401223111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122401223121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483020385 + ... + 483024778.

It is an arithmetic number, because the mean of its divisors is an integer number (287398436290).

Almost surely, 2^{2122401223111} is an apocalyptic number.

2122401223111 is a deficient number, since it is larger than the sum of its proper divisors (176786267209).

2122401223111 is an frugal number, since it uses more digits than its factorization.

2122401223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966045202 (or 966045176 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 2122401223111 its reverse (1113221042212), we get a palindrome (3235622265323).

The spelling of 2122401223111 in words is "two trillion, one hundred twenty-two billion, four hundred one million, two hundred twenty-three thousand, one hundred eleven".