2212130023123 has 4 divisors (see below), whose sum is σ = 2212145475328. Its totient is φ = 2212114570920.

The previous prime is 2212130023121. The next prime is 2212130023193. The reversal of 2212130023123 is 3213200312122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2212130023123 - 2¹ = 2212130023121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212130023094 and 2212130023103.

It is not an unprimeable number, because it can be changed into a prime (2212130023121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7509336 + ... + 7798357.

It is an arithmetic number, because the mean of its divisors is an integer number (553036368832).

Almost surely, 2^{2212130023123} is an apocalyptic number.

2212130023123 is a deficient number, since it is larger than the sum of its proper divisors (15452205).

2212130023123 is a wasteful number, since it uses less digits than its factorization.

2212130023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15452204.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2212130023123 its reverse (3213200312122), we get a palindrome (5425330335245).

The spelling of 2212130023123 in words is "two trillion, two hundred twelve billion, one hundred thirty million, twenty-three thousand, one hundred twenty-three".