212143400100223 has 16 divisors (see below), whose sum is σ = 213205683525120. Its totient is φ = 211082268102336.

The previous prime is 212143400100187. The next prime is 212143400100239. The reversal of 212143400100223 is 322001004341212.

It is a cyclic number.

It is not a de Polignac number, because 212143400100223 - 2⁹ = 212143400099711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212143400100293) 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, 3573272883 + ... + 3573332251.

It is an arithmetic number, because the mean of its divisors is an integer number (13325355220320).

Almost surely, 2^{212143400100223} is an apocalyptic number.

212143400100223 is a deficient number, since it is larger than the sum of its proper divisors (1062283424897).

212143400100223 is a wasteful number, since it uses less digits than its factorization.

212143400100223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68766.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212143400100223 its reverse (322001004341212), we get a palindrome (534144404441435).

The spelling of 212143400100223 in words is "two hundred twelve trillion, one hundred forty-three billion, four hundred million, one hundred thousand, two hundred twenty-three".