1101220003021 has 2 divisors, whose sum is σ = 1101220003022. Its totient is φ = 1101220003020.

The previous prime is 1101220003001. The next prime is 1101220003027. The reversal of 1101220003021 is 1203000221011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1100850017796 + 369985225 = 1049214^2 + 19235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101220003021 - 2²⁵ = 1101186448589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101220002992 and 1101220003010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101220003027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550610001510 + 550610001511.

It is an arithmetic number, because the mean of its divisors is an integer number (550610001511).

Almost surely, 2^{1101220003021} is an apocalyptic number.

It is an amenable number.

1101220003021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101220003021 is an equidigital number, since it uses as much as digits as its factorization.

1101220003021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1101220003021 its reverse (1203000221011), we get a palindrome (2304220224032).

The spelling of 1101220003021 in words is "one trillion, one hundred one billion, two hundred twenty million, three thousand, twenty-one".