2111021222123 has 16 divisors (see below), whose sum is σ = 2309826347136. Its totient is φ = 1913366864640.

The previous prime is 2111021222083. The next prime is 2111021222153. The reversal of 2111021222123 is 3212221201112.

It is not a de Polignac number, because 2111021222123 - 2⁸ = 2111021221867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111021222095 and 2111021222104.

It is not an unprimeable number, because it can be changed into a prime (2111021222153) 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, 26220536 + ... + 26300922.

It is an arithmetic number, because the mean of its divisors is an integer number (144364146696).

Almost surely, 2^{2111021222123} is an apocalyptic number.

2111021222123 is a deficient number, since it is larger than the sum of its proper divisors (198805125013).

2111021222123 is a wasteful number, since it uses less digits than its factorization.

2111021222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87514.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2111021222123 its reverse (3212221201112), we get a palindrome (5323242423235).

The spelling of 2111021222123 in words is "two trillion, one hundred eleven billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-three".