2100012212223 has 12 divisors (see below), whose sum is σ = 3033823467688. Its totient is φ = 1399790067120.

The previous prime is 2100012212219. The next prime is 2100012212281. The reversal of 2100012212223 is 3222122100012.

It is not a de Polignac number, because 2100012212223 - 2² = 2100012212219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100012212196 and 2100012212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100012212323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18111865 + ... + 18227442.

Almost surely, 2^{2100012212223} is an apocalyptic number.

2100012212223 is a deficient number, since it is larger than the sum of its proper divisors (933811255465).

2100012212223 is a wasteful number, since it uses less digits than its factorization.

2100012212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36345734 (or 36345731 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2100012212223 its reverse (3222122100012), we get a palindrome (5322134312235).

The spelling of 2100012212223 in words is "two trillion, one hundred billion, twelve million, two hundred twelve thousand, two hundred twenty-three".