100101211212 has 24 divisors (see below), whose sum is σ = 233574664176. Its totient is φ = 33366331648.

The previous prime is 100101211183. The next prime is 100101211253. The reversal of 100101211212 is 212112101001.

It is a super-2 number, since 2×100101211212² (a number of 23 digits) contains 22 as substring.

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

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, 891568 + ... + 997544.

It is an arithmetic number, because the mean of its divisors is an integer number (9732277674).

Almost surely, 2^100101211212 is an apocalyptic number.

100101211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100101211212 is an abundant number, since it is smaller than the sum of its proper divisors (133473452964).

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

100101211212 is a wasteful number, since it uses less digits than its factorization.

100101211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184697 (or 184695 counting only the distinct ones).

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

Adding to 100101211212 its reverse (212112101001), we get a palindrome (312213312213).

The spelling of 100101211212 in words is "one hundred billion, one hundred one million, two hundred eleven thousand, two hundred twelve".