111021002220001 has 2 divisors, whose sum is σ = 111021002220002. Its totient is φ = 111021002220000.

The previous prime is 111021002219957. The next prime is 111021002220017. The reversal of 111021002220001 is 100022200120111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103295187403776 + 7725814816225 = 10163424^2 + 2779535^2 .

It is a cyclic number.

It is not a de Polignac number, because 111021002220001 - 2¹¹ = 111021002217953 is a prime.

It is not a weakly prime, because it can be changed into another prime (111021002220031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510501110000 + 55510501110001.

It is an arithmetic number, because the mean of its divisors is an integer number (55510501110001).

Almost surely, 2^{111021002220001} is an apocalyptic number.

It is an amenable number.

111021002220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021002220001 is an equidigital number, since it uses as much as digits as its factorization.

111021002220001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111021002220001 its reverse (100022200120111), we get a palindrome (211043202340112).

The spelling of 111021002220001 in words is "one hundred eleven trillion, twenty-one billion, two million, two hundred twenty thousand, one".