100101221112 has 16 divisors (see below), whose sum is σ = 250253052840. Its totient is φ = 33367073696.

The previous prime is 100101221093. The next prime is 100101221167. The reversal of 100101221112 is 211122101001.

It is a super-3 number, since 3×100101221112³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2085442083 + ... + 2085442130.

Almost surely, 2^100101221112 is an apocalyptic number.

100101221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100101221112 is an abundant number, since it is smaller than the sum of its proper divisors (150151831728).

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

100101221112 is a wasteful number, since it uses less digits than its factorization.

100101221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170884222 (or 4170884218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100101221112 its reverse (211122101001), we get a palindrome (311223322113).

The spelling of 100101221112 in words is "one hundred billion, one hundred one million, two hundred twenty-one thousand, one hundred twelve".