100200012121212 has 12 divisors (see below), whose sum is σ = 233800028282856. Its totient is φ = 33400004040400.

The previous prime is 100200012121211. The next prime is 100200012121217. The reversal of 100200012121212 is 212121210002001.

It is a tau number, because it is divible by the number of its divisors (12).

100200012121212 is a modest number, since divided by 12121212 gives 1002000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 100200012121191 and 100200012121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100200012121211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175000505039 + ... + 4175000505062.

It is an arithmetic number, because the mean of its divisors is an integer number (19483335690238).

Almost surely, 2^{100200012121212} is an apocalyptic number.

100200012121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100200012121212 is an abundant number, since it is smaller than the sum of its proper divisors (133600016161644).

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

100200012121212 is a wasteful number, since it uses less digits than its factorization.

100200012121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8350001010108 (or 8350001010106 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100200012121212 its reverse (212121210002001), we get a palindrome (312321222123213).

The spelling of 100200012121212 in words is "one hundred trillion, two hundred billion, twelve million, one hundred twenty-one thousand, two hundred twelve".