1111022002001 has 2 divisors, whose sum is σ = 1111022002002. Its totient is φ = 1111022002000.

The previous prime is 1111022001997. The next prime is 1111022002039. The reversal of 1111022002001 is 1002002201111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1080402251776 + 30619750225 = 1039424^2 + 174985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111022002001 - 2² = 1111022001997 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111022002201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555511001000 + 555511001001.

It is an arithmetic number, because the mean of its divisors is an integer number (555511001001).

Almost surely, 2^{1111022002001} is an apocalyptic number.

It is an amenable number.

1111022002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111022002001 is an equidigital number, since it uses as much as digits as its factorization.

1111022002001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1111022002001 its reverse (1002002201111), we get a palindrome (2113024203112).

The spelling of 1111022002001 in words is "one trillion, one hundred eleven billion, twenty-two million, two thousand, one".