1101002021971 has 2 divisors, whose sum is σ = 1101002021972. Its totient is φ = 1101002021970.

The previous prime is 1101002021953. The next prime is 1101002022007. The reversal of 1101002021971 is 1791202001011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1791202001011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101002021971 - 2³³ = 1092412087379 is a prime.

It is a super-3 number, since 3×1101002021971³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1101002021671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550501010985 + 550501010986.

It is an arithmetic number, because the mean of its divisors is an integer number (550501010986).

Almost surely, 2^{1101002021971} is an apocalyptic number.

1101002021971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101002021971 is an equidigital number, since it uses as much as digits as its factorization.

1101002021971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 1101002021971 its reverse (1791202001011), we get a palindrome (2892204022982).

The spelling of 1101002021971 in words is "one trillion, one hundred one billion, two million, twenty-one thousand, nine hundred seventy-one".