100121101110012 has 24 divisors (see below), whose sum is σ = 239929845904336. Its totient is φ = 32471708467968.

The previous prime is 100121101109993. The next prime is 100121101110059. The reversal of 100121101110012 is 210011101121001.

It is a super-2 number, since 2×100121101110012² (a number of 29 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100121101110012.

It is a congruent number.

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, 112748987293 + ... + 112748988180.

Almost surely, 2^{100121101110012} is an apocalyptic number.

100121101110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100121101110012 is an abundant number, since it is smaller than the sum of its proper divisors (139808744794324).

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

100121101110012 is a wasteful number, since it uses less digits than its factorization.

100121101110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225497975517 (or 225497975515 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 100121101110012 its reverse (210011101121001), we get a palindrome (310132202231013).

The spelling of 100121101110012 in words is "one hundred trillion, one hundred twenty-one billion, one hundred one million, one hundred ten thousand, twelve".