212143311244401 has 4 divisors (see below), whose sum is σ = 282857748325872. Its totient is φ = 141428874162932.

The previous prime is 212143311244369. The next prime is 212143311244409. The reversal of 212143311244401 is 104442113341212.

212143311244401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212143311244401 - 2⁵ = 212143311244369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212143311244409) 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, 35357218540731 + ... + 35357218540736.

It is an arithmetic number, because the mean of its divisors is an integer number (70714437081468).

Almost surely, 2^{212143311244401} is an apocalyptic number.

It is an amenable number.

212143311244401 is a deficient number, since it is larger than the sum of its proper divisors (70714437081471).

212143311244401 is an equidigital number, since it uses as much as digits as its factorization.

212143311244401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70714437081470.

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 212143311244401 its reverse (104442113341212), we get a palindrome (316585424585613).

The spelling of 212143311244401 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred eleven million, two hundred forty-four thousand, four hundred one".