100200001212 has 36 divisors (see below), whose sum is σ = 262664203256. Its totient is φ = 33400000080.

The previous prime is 100200001201. The next prime is 100200001249. The reversal of 100200001212 is 212100002001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100200001194 and 100200001203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51542239 + ... + 51544182.

Almost surely, 2^100200001212 is an apocalyptic number.

100200001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100200001212 is an abundant number, since it is smaller than the sum of its proper divisors (162464202044).

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

100200001212 is a wasteful number, since it uses less digits than its factorization.

100200001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103086440 (or 103086426 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100200001212 its reverse (212100002001), we get a palindrome (312300003213).

The spelling of 100200001212 in words is "one hundred billion, two hundred million, one thousand, two hundred twelve".