1111102002021 has 16 divisors (see below), whose sum is σ = 1632149840448. Its totient is φ = 666727872000.

The previous prime is 1111102002013. The next prime is 1111102002029. The reversal of 1111102002021 is 1202002011111.

It is an interprime number because it is at equal distance from previous prime (1111102002013) and next prime (1111102002029).

It is not a de Polignac number, because 1111102002021 - 2³ = 1111102002013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111102001988 and 1111102002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111102002029) 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 15 ways as a sum of consecutive naturals, for example, 166678636 + ... + 166685301.

It is an arithmetic number, because the mean of its divisors is an integer number (102009365028).

Almost surely, 2^{1111102002021} is an apocalyptic number.

1111102002021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111102002021 is a deficient number, since it is larger than the sum of its proper divisors (521047838427).

1111102002021 is a wasteful number, since it uses less digits than its factorization.

1111102002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333364052.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1111102002021 its reverse (1202002011111), we get a palindrome (2313104013132).

The spelling of 1111102002021 in words is "one trillion, one hundred eleven billion, one hundred two million, two thousand, twenty-one".