2211212020001 has 2 divisors, whose sum is σ = 2211212020002. Its totient is φ = 2211212020000.

The previous prime is 2211212019953. The next prime is 2211212020037. The reversal of 2211212020001 is 1000202121122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2170094319376 + 41117700625 = 1473124^2 + 202775^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211212020001 - 2⁶ = 2211212019937 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 (2211212020091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105606010000 + 1105606010001.

It is an arithmetic number, because the mean of its divisors is an integer number (1105606010001).

Almost surely, 2^{2211212020001} is an apocalyptic number.

It is an amenable number.

2211212020001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211212020001 is an equidigital number, since it uses as much as digits as its factorization.

2211212020001 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 2211212020001 its reverse (1000202121122), we get a palindrome (3211414141123).

The spelling of 2211212020001 in words is "two trillion, two hundred eleven billion, two hundred twelve million, twenty thousand, one".