100020111122011 has 4 divisors (see below), whose sum is σ = 101512948601512. Its totient is φ = 98527273642512.

The previous prime is 100020111121919. The next prime is 100020111122059. The reversal of 100020111122011 is 110221111020001.

It is a happy number.

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 100020111122011 - 2²¹ = 100020109024859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100020111121982 and 100020111122000.

It is not an unprimeable number, because it can be changed into a prime (100020111152011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746418739650 + ... + 746418739783.

It is an arithmetic number, because the mean of its divisors is an integer number (25378237150378).

Almost surely, 2^{100020111122011} is an apocalyptic number.

100020111122011 is a deficient number, since it is larger than the sum of its proper divisors (1492837479501).

100020111122011 is an equidigital number, since it uses as much as digits as its factorization.

100020111122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492837479500.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100020111122011 its reverse (110221111020001), we get a palindrome (210241222142012).

The spelling of 100020111122011 in words is "one hundred trillion, twenty billion, one hundred eleven million, one hundred twenty-two thousand, eleven".