1002010021111 has 4 divisors (see below), whose sum is σ = 1093101841224. Its totient is φ = 910918201000.

The previous prime is 1002010021091. The next prime is 1002010021121. The reversal of 1002010021111 is 1111200102001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002010021111 - 2²⁹ = 1001473150199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002010021121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45545910040 + ... + 45545910061.

It is an arithmetic number, because the mean of its divisors is an integer number (273275460306).

Almost surely, 2^{1002010021111} is an apocalyptic number.

1002010021111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002010021111 is a deficient number, since it is larger than the sum of its proper divisors (91091820113).

1002010021111 is an equidigital number, since it uses as much as digits as its factorization.

1002010021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91091820112.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1002010021111 its reverse (1111200102001), we get a palindrome (2113210123112).

The spelling of 1002010021111 in words is "one trillion, two billion, ten million, twenty-one thousand, one hundred eleven".