212311122301 has 8 divisors (see below), whose sum is σ = 213526555704. Its totient is φ = 211097080320.

The previous prime is 212311122293. The next prime is 212311122371. The reversal of 212311122301 is 103221113212.

It can be written as a sum of positive squares in 4 ways, for example, as 24861090276 + 187450032025 = 157674^2 + 432955^2 .

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 212311122301 - 2³ = 212311122293 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 (212311122371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41040 + ... + 652921.

It is an arithmetic number, because the mean of its divisors is an integer number (26690819463).

Almost surely, 2^212311122301 is an apocalyptic number.

It is an amenable number.

212311122301 is a deficient number, since it is larger than the sum of its proper divisors (1215433403).

212311122301 is a wasteful number, since it uses less digits than its factorization.

212311122301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695711.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212311122301 its reverse (103221113212), we get a palindrome (315532235513).

It can be divided in two parts, 2123111 and 22301, that added together give a palindrome (2145412).

The spelling of 212311122301 in words is "two hundred twelve billion, three hundred eleven million, one hundred twenty-two thousand, three hundred one".