2102111212223 has 64 divisors (see below), whose sum is σ = 2533277514240. Its totient is φ = 1722489753600.

The previous prime is 2102111212183. The next prime is 2102111212261. The reversal of 2102111212223 is 3222121112012.

It is a de Polignac number, because none of the positive numbers 2^k-2102111212223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102111212195 and 2102111212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102111212423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 188338763 + ... + 188349923.

It is an arithmetic number, because the mean of its divisors is an integer number (39582461160).

Almost surely, 2^{2102111212223} is an apocalyptic number.

2102111212223 is a deficient number, since it is larger than the sum of its proper divisors (431166302017).

2102111212223 is a wasteful number, since it uses less digits than its factorization.

2102111212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11688.

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

Adding to 2102111212223 its reverse (3222121112012), we get a palindrome (5324232324235).

The spelling of 2102111212223 in words is "two trillion, one hundred two billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-three".