212112223000001 has 2 divisors, whose sum is σ = 212112223000002. Its totient is φ = 212112223000000.

The previous prime is 212112222999931. The next prime is 212112223000049. The reversal of 212112223000001 is 100000322211212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141636181210000 + 70476041790001 = 11901100^2 + 8395001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212112223000001 is a prime.

It is not a weakly prime, because it can be changed into another prime (212112223000091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106056111500000 + 106056111500001.

It is an arithmetic number, because the mean of its divisors is an integer number (106056111500001).

Almost surely, 2^{212112223000001} is an apocalyptic number.

It is an amenable number.

212112223000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212112223000001 is an equidigital number, since it uses as much as digits as its factorization.

212112223000001 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 212112223000001 its reverse (100000322211212), we get a palindrome (312112545211213).

The spelling of 212112223000001 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred twenty-three million, one", and thus it is an aban number.