100020110212111 has 12 divisors (see below), whose sum is σ = 103669128872712. Its totient is φ = 96495516412064.

The previous prime is 100020110212091. The next prime is 100020110212171. The reversal of 100020110212111 is 111212011020001.

It is a happy number.

It is not a de Polignac number, because 100020110212111 - 2¹³ = 100020110203919 is a prime.

It is a super-2 number, since 2×100020110212111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100020110212091 and 100020110212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020110212171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45492205 + ... + 47640118.

It is an arithmetic number, because the mean of its divisors is an integer number (8639094072726).

Almost surely, 2^{100020110212111} is an apocalyptic number.

100020110212111 is a deficient number, since it is larger than the sum of its proper divisors (3649018660601).

100020110212111 is an equidigital number, since it uses as much as digits as its factorization.

100020110212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93133658 (or 93133629 counting only the distinct ones).

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

Adding to 100020110212111 its reverse (111212011020001), we get a palindrome (211232121232112).

The spelling of 100020110212111 in words is "one hundred trillion, twenty billion, one hundred ten million, two hundred twelve thousand, one hundred eleven".