2211212002001 has 2 divisors, whose sum is σ = 2211212002002. Its totient is φ = 2211212002000.

The previous prime is 2211212001959. The next prime is 2211212002067. The reversal of 2211212002001 is 1002002121122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147467297601 + 1063744704400 = 1071199^2 + 1031380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211212002001 - 2¹⁸ = 2211211739857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2211212002201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105606001000 + 1105606001001.

It is an arithmetic number, because the mean of its divisors is an integer number (1105606001001).

Almost surely, 2^{2211212002001} is an apocalyptic number.

It is an amenable number.

2211212002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211212002001 is an equidigital number, since it uses as much as digits as its factorization.

2211212002001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2211212002001 its reverse (1002002121122), we get a palindrome (3213214123123).

The spelling of 2211212002001 in words is "two trillion, two hundred eleven billion, two hundred twelve million, two thousand, one".