212312203401 has 8 divisors (see below), whose sum is σ = 283091904864. Its totient is φ = 141536985440.

The previous prime is 212312203399. The next prime is 212312203409. The reversal of 212312203401 is 104302213212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212312203401 - 2¹ = 212312203399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212312203409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008780 + ... + 1200941.

It is an arithmetic number, because the mean of its divisors is an integer number (35386488108).

Almost surely, 2^212312203401 is an apocalyptic number.

It is an amenable number.

212312203401 is a deficient number, since it is larger than the sum of its proper divisors (70779701463).

212312203401 is a wasteful number, since it uses less digits than its factorization.

212312203401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241751.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212312203401 its reverse (104302213212), we get a palindrome (316614416613).

The spelling of 212312203401 in words is "two hundred twelve billion, three hundred twelve million, two hundred three thousand, four hundred one".