2112123223201 has 16 divisors (see below), whose sum is σ = 2276137843200. Its totient is φ = 1955089827328.

The previous prime is 2112123223153. The next prime is 2112123223267. The reversal of 2112123223201 is 1023223212112.

It is not a de Polignac number, because 2112123223201 - 2²³ = 2112114834593 is a prime.

It is a super-2 number, since 2×2112123223201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112123223291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10880536 + ... + 11072953.

It is an arithmetic number, because the mean of its divisors is an integer number (142258615200).

Almost surely, 2^{2112123223201} is an apocalyptic number.

It is an amenable number.

2112123223201 is a deficient number, since it is larger than the sum of its proper divisors (164014619999).

2112123223201 is a wasteful number, since it uses less digits than its factorization.

2112123223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21953648.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2112123223201 its reverse (1023223212112), we get a palindrome (3135346435313).

The spelling of 2112123223201 in words is "two trillion, one hundred twelve billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred one".