100111100100212 has 24 divisors (see below), whose sum is σ = 176188502871360. Its totient is φ = 49771576543680.

The previous prime is 100111100100191. The next prime is 100111100100233. The reversal of 100111100100212 is 212001001111001.

It is an interprime number because it is at equal distance from previous prime (100111100100191) and next prime (100111100100233).

It is a junction number, because it is equal to n+sod(n) for n = 100111100100193 and 100111100100202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151137 + ... + 14312567.

It is an arithmetic number, because the mean of its divisors is an integer number (7341187619640).

Almost surely, 2^{100111100100212} is an apocalyptic number.

It is an amenable number.

100111100100212 is a deficient number, since it is larger than the sum of its proper divisors (76077402771148).

100111100100212 is a wasteful number, since it uses less digits than its factorization.

100111100100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12173111 (or 12173109 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100111100100212 its reverse (212001001111001), we get a palindrome (312112101211213).

The spelling of 100111100100212 in words is "one hundred trillion, one hundred eleven billion, one hundred million, one hundred thousand, two hundred twelve".