212212231001 has 2 divisors, whose sum is σ = 212212231002. Its totient is φ = 212212231000.

The previous prime is 212212230983. The next prime is 212212231003. The reversal of 212212231001 is 100132212212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184642949401 + 27569281600 = 429701^2 + 166040^2 .

It is a cyclic number.

It is not a de Polignac number, because 212212231001 - 2³⁴ = 195032361817 is a prime.

Together with 212212231003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212212231003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106115500 + 106106115501.

It is an arithmetic number, because the mean of its divisors is an integer number (106106115501).

Almost surely, 2^212212231001 is an apocalyptic number.

It is an amenable number.

212212231001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212212231001 is an equidigital number, since it uses as much as digits as its factorization.

212212231001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212212231001 its reverse (100132212212), we get a palindrome (312344443213).

The spelling of 212212231001 in words is "two hundred twelve billion, two hundred twelve million, two hundred thirty-one thousand, one".