2111020222001 has 2 divisors, whose sum is σ = 2111020222002. Its totient is φ = 2111020222000.

The previous prime is 2111020221979. The next prime is 2111020222061. The reversal of 2111020222001 is 1002220201112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1704134430625 + 406885791376 = 1305425^2 + 637876^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111020222001 - 2¹⁸ = 2111019959857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111020222061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510111000 + 1055510111001.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510111001).

Almost surely, 2^{2111020222001} is an apocalyptic number.

It is an amenable number.

2111020222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111020222001 is an equidigital number, since it uses as much as digits as its factorization.

2111020222001 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 2111020222001 its reverse (1002220201112), we get a palindrome (3113240423113).

The spelling of 2111020222001 in words is "two trillion, one hundred eleven billion, twenty million, two hundred twenty-two thousand, one".