2212010021801 has 2 divisors, whose sum is σ = 2212010021802. Its totient is φ = 2212010021800.

The previous prime is 2212010021737. The next prime is 2212010021803. The reversal of 2212010021801 is 1081200102122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2204631040000 + 7378981801 = 1484800^2 + 85901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212010021801 - 2⁶ = 2212010021737 is a prime.

Together with 2212010021803, 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 (2212010021803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106005010900 + 1106005010901.

It is an arithmetic number, because the mean of its divisors is an integer number (1106005010901).

Almost surely, 2^{2212010021801} is an apocalyptic number.

It is an amenable number.

2212010021801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212010021801 is an equidigital number, since it uses as much as digits as its factorization.

2212010021801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 2212010021801 its reverse (1081200102122), we get a palindrome (3293210123923).

The spelling of 2212010021801 in words is "two trillion, two hundred twelve billion, ten million, twenty-one thousand, eight hundred one".