100020111210001 has 32 divisors (see below), whose sum is σ = 108736496668800. Its totient is φ = 91788098680320.

The previous prime is 100020111209981. The next prime is 100020111210113. The reversal of 100020111210001 is 100012111020001.

It is a cyclic number.

It is not a de Polignac number, because 100020111210001 - 2³¹ = 100017963726353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100020111210001.

It is not an unprimeable number, because it can be changed into a prime (100020111216001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17373870 + ... + 22402936.

It is an arithmetic number, because the mean of its divisors is an integer number (3398015520900).

Almost surely, 2^{100020111210001} is an apocalyptic number.

It is an amenable number.

100020111210001 is a deficient number, since it is larger than the sum of its proper divisors (8716385458799).

100020111210001 is a wasteful number, since it uses less digits than its factorization.

100020111210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029569.

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

Adding to 100020111210001 its reverse (100012111020001), we get a palindrome (200032222230002).

The spelling of 100020111210001 in words is "one hundred trillion, twenty billion, one hundred eleven million, two hundred ten thousand, one".