1002081299021 has 4 divisors (see below), whose sum is σ = 1093179598944. Its totient is φ = 910982999100.

The previous prime is 1002081298997. The next prime is 1002081299101. The reversal of 1002081299021 is 1209921802001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1002081299021 - 2⁶ = 1002081298957 is a prime.

It is a super-2 number, since 2×1002081299021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002081299221) 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 in 3 ways as a sum of consecutive naturals, for example, 45549149945 + ... + 45549149966.

It is an arithmetic number, because the mean of its divisors is an integer number (273294899736).

Almost surely, 2^{1002081299021} is an apocalyptic number.

1002081299021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002081299021 is a deficient number, since it is larger than the sum of its proper divisors (91098299923).

1002081299021 is an equidigital number, since it uses as much as digits as its factorization.

1002081299021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91098299922.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 1002081299021 in words is "one trillion, two billion, eighty-one million, two hundred ninety-nine thousand, twenty-one".