11222001211801 has 2 divisors, whose sum is σ = 11222001211802. Its totient is φ = 11222001211800.

The previous prime is 11222001211769. The next prime is 11222001211847. The reversal of 11222001211801 is 10811210022211.

It is a happy number.

11222001211801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7955671536400 + 3266329675401 = 2820580^2 + 1807299^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222001211801 - 2⁵ = 11222001211769 is a prime.

It is a super-2 number, since 2×11222001211801² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11222001251801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611000605900 + 5611000605901.

It is an arithmetic number, because the mean of its divisors is an integer number (5611000605901).

Almost surely, 2^{11222001211801} is an apocalyptic number.

It is an amenable number.

11222001211801 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222001211801 is an equidigital number, since it uses as much as digits as its factorization.

11222001211801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 22.

The spelling of 11222001211801 in words is "eleven trillion, two hundred twenty-two billion, one million, two hundred eleven thousand, eight hundred one".