1021120100011 has 6 divisors (see below), whose sum is σ = 1122388209236. Its totient is φ = 928290999900.

The previous prime is 1021120100009. The next prime is 1021120100041. The reversal of 1021120100011 is 1100010211201.

It is not a de Polignac number, because 1021120100011 - 2¹ = 1021120100009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021120100041) 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 5 ways as a sum of consecutive naturals, for example, 4219504425 + ... + 4219504666.

Almost surely, 2^{1021120100011} is an apocalyptic number.

1021120100011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1021120100011 is a deficient number, since it is larger than the sum of its proper divisors (101268109225).

1021120100011 is an equidigital number, since it uses as much as digits as its factorization.

1021120100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439009113 (or 8439009102 counting only the distinct ones).

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

Adding to 1021120100011 its reverse (1100010211201), we get a palindrome (2121130311212).

The spelling of 1021120100011 in words is "one trillion, twenty-one billion, one hundred twenty million, one hundred thousand, eleven".