212230023 has 16 divisors (see below), whose sum is σ = 302991840. Its totient is φ = 131664896.

The previous prime is 212230013. The next prime is 212230037. The reversal of 212230023 is 320032212.

It is a cyclic number.

It is not a de Polignac number, because 212230023 - 2⁵ = 212229991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212229984 and 212230011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212230013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18840 + ... + 27917.

It is an arithmetic number, because the mean of its divisors is an integer number (18936990).

Almost surely, 2^212230023 is an apocalyptic number.

212230023 is a deficient number, since it is larger than the sum of its proper divisors (90761817).

212230023 is a wasteful number, since it uses less digits than its factorization.

212230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46866.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 212230023 is about 14568.1166593352. The cubic root of 212230023 is about 596.4887727769.

Adding to 212230023 its reverse (320032212), we get a palindrome (532262235).

The spelling of 212230023 in words is "two hundred twelve million, two hundred thirty thousand, twenty-three".