1001102102021 has 4 divisors (see below), whose sum is σ = 1144116688032. Its totient is φ = 858087516012.

The previous prime is 1001102101927. The next prime is 1001102102041. The reversal of 1001102102021 is 1202012011001.

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 a de Polignac number, because none of the positive numbers 2^k-1001102102021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001102101993 and 1001102102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001102102041) 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, 71507292995 + ... + 71507293008.

It is an arithmetic number, because the mean of its divisors is an integer number (286029172008).

Almost surely, 2^{1001102102021} is an apocalyptic number.

It is an amenable number.

1001102102021 is a deficient number, since it is larger than the sum of its proper divisors (143014586011).

1001102102021 is an equidigital number, since it uses as much as digits as its factorization.

1001102102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143014586010.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001102102021 its reverse (1202012011001), we get a palindrome (2203114113022).

The spelling of 1001102102021 in words is "one trillion, one billion, one hundred two million, one hundred two thousand, twenty-one".