7222011211001 has 2 divisors, whose sum is σ = 7222011211002. Its totient is φ = 7222011211000.

The previous prime is 7222011210991. The next prime is 7222011211021. The reversal of 7222011211001 is 1001121102227.

It is a happy number.

It is an a-pointer prime, because the next prime (7222011211021) can be obtained adding 7222011211001 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4281489318976 + 2940521892025 = 2069176^2 + 1714795^2 .

It is an emirp because it is prime and its reverse (1001121102227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7222011211001 - 2¹⁰ = 7222011209977 is a prime.

It is not a weakly prime, because it can be changed into another prime (7222011211021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3611005605500 + 3611005605501.

It is an arithmetic number, because the mean of its divisors is an integer number (3611005605501).

Almost surely, 2^{7222011211001} is an apocalyptic number.

It is an amenable number.

7222011211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

7222011211001 is an equidigital number, since it uses as much as digits as its factorization.

7222011211001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 7222011211001 its reverse (1001121102227), we get a palindrome (8223132313228).

The spelling of 7222011211001 in words is "seven trillion, two hundred twenty-two billion, eleven million, two hundred eleven thousand, one".