100200012121012 has 48 divisors (see below), whose sum is σ = 178033685598720. Its totient is φ = 49340648412000.

The previous prime is 100200012121009. The next prime is 100200012121043. The reversal of 100200012121012 is 210121210002001.

It is a junction number, because it is equal to n+sod(n) for n = 100200012120983 and 100200012121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34386423 + ... + 37186369.

It is an arithmetic number, because the mean of its divisors is an integer number (3709035116640).

Almost surely, 2^{100200012121012} is an apocalyptic number.

It is an amenable number.

100200012121012 is a deficient number, since it is larger than the sum of its proper divisors (77833673477708).

100200012121012 is a wasteful number, since it uses less digits than its factorization.

100200012121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800612 (or 2800610 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100200012121012 its reverse (210121210002001), we get a palindrome (310321222123013).

The spelling of 100200012121012 in words is "one hundred trillion, two hundred billion, twelve million, one hundred twenty-one thousand, twelve".