100111201212020 has 24 divisors (see below), whose sum is σ = 211523298764064. Its totient is φ = 39798808824096.

The previous prime is 100111201211999. The next prime is 100111201212053. The reversal of 100111201212020 is 20212102111001.

It is a super-2 number, since 2×100111201212020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100111201211986 and 100111201212004.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15354475454 + ... + 15354481973.

It is an arithmetic number, because the mean of its divisors is an integer number (8813470781836).

Almost surely, 2^{100111201212020} is an apocalyptic number.

100111201212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111201212020 is an abundant number, since it is smaller than the sum of its proper divisors (111412097552044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100111201212020 is a wasteful number, since it uses less digits than its factorization.

100111201212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30708957599 (or 30708957597 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100111201212020 its reverse (20212102111001), we get a palindrome (120323303323021).

The spelling of 100111201212020 in words is "one hundred trillion, one hundred eleven billion, two hundred one million, two hundred twelve thousand, twenty".