100012020111211 has 32 divisors (see below), whose sum is σ = 113879101996800. Its totient is φ = 87070254203520.

The previous prime is 100012020111181. The next prime is 100012020111229. The reversal of 100012020111211 is 112111020210001.

It is a happy number.

It is not a de Polignac number, because 100012020111211 - 2⁹ = 100012020110699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 100012020111191 and 100012020111200.

It is not an unprimeable number, because it can be changed into a prime (100012020111271) 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 31 ways as a sum of consecutive naturals, for example, 1685348401 + ... + 1685407741.

It is an arithmetic number, because the mean of its divisors is an integer number (3558721937400).

Almost surely, 2^{100012020111211} is an apocalyptic number.

100012020111211 is a deficient number, since it is larger than the sum of its proper divisors (13867081885589).

100012020111211 is a wasteful number, since it uses less digits than its factorization.

100012020111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89659.

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

Adding to 100012020111211 its reverse (112111020210001), we get a palindrome (212123040321212).

The spelling of 100012020111211 in words is "one hundred trillion, twelve billion, twenty million, one hundred eleven thousand, two hundred eleven".