1110001022021 has 2 divisors, whose sum is σ = 1110001022022. Its totient is φ = 1110001022020.

The previous prime is 1110001021979. The next prime is 1110001022047. The reversal of 1110001022021 is 1202201000111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1087452696100 + 22548325921 = 1042810^2 + 150161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110001022021 - 2²² = 1109996827717 is a prime.

It is a super-3 number, since 3×1110001022021³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1110001021993 and 1110001022011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110001021021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555000511010 + 555000511011.

It is an arithmetic number, because the mean of its divisors is an integer number (555000511011).

Almost surely, 2^{1110001022021} is an apocalyptic number.

It is an amenable number.

1110001022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110001022021 is an equidigital number, since it uses as much as digits as its factorization.

1110001022021 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 1110001022021 its reverse (1202201000111), we get a palindrome (2312202022132).

The spelling of 1110001022021 in words is "one trillion, one hundred ten billion, one million, twenty-two thousand, twenty-one".