100330111212 has 24 divisors (see below), whose sum is σ = 234323851776. Its totient is φ = 33411904848.

The previous prime is 100330111207. The next prime is 100330111213. The reversal of 100330111212 is 212111033001.

It is a happy number.

It is a super-2 number, since 2×100330111212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100330111191 and 100330111200.

It is not an unprimeable number, because it can be changed into a prime (100330111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3919908 + ... + 3945419.

It is an arithmetic number, because the mean of its divisors is an integer number (9763493824).

Almost surely, 2^100330111212 is an apocalyptic number.

100330111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100330111212 is an abundant number, since it is smaller than the sum of its proper divisors (133993740564).

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

100330111212 is a wasteful number, since it uses less digits than its factorization.

100330111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866397 (or 7866395 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 100330111212 its reverse (212111033001), we get a palindrome (312441144213).

The spelling of 100330111212 in words is "one hundred billion, three hundred thirty million, one hundred eleven thousand, two hundred twelve".