212212110023 has 4 divisors (see below), whose sum is σ = 212561718720. Its totient is φ = 211862501328.

The previous prime is 212212110013. The next prime is 212212110031. The reversal of 212212110023 is 320011212212.

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 212212110023 - 2²² = 212207915719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212212109983 and 212212110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212110013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174803438 + ... + 174804651.

It is an arithmetic number, because the mean of its divisors is an integer number (53140429680).

Almost surely, 2^212212110023 is an apocalyptic number.

212212110023 is a deficient number, since it is larger than the sum of its proper divisors (349608697).

212212110023 is an equidigital number, since it uses as much as digits as its factorization.

212212110023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349608696.

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

Adding to 212212110023 its reverse (320011212212), we get a palindrome (532223322235).

The spelling of 212212110023 in words is "two hundred twelve billion, two hundred twelve million, one hundred ten thousand, twenty-three".