2111220200123 has 2 divisors, whose sum is σ = 2111220200124. Its totient is φ = 2111220200122.

The previous prime is 2111220200119. The next prime is 2111220200233. The reversal of 2111220200123 is 3210020221112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111220200123 - 2² = 2111220200119 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111220200723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055610100061 + 1055610100062.

It is an arithmetic number, because the mean of its divisors is an integer number (1055610100062).

Almost surely, 2^{2111220200123} is an apocalyptic number.

2111220200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111220200123 is an equidigital number, since it uses as much as digits as its factorization.

2111220200123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2111220200123 its reverse (3210020221112), we get a palindrome (5321240421235).

The spelling of 2111220200123 in words is "two trillion, one hundred eleven billion, two hundred twenty million, two hundred thousand, one hundred twenty-three".