100121011100012 has 12 divisors (see below), whose sum is σ = 200242022200080. Its totient is φ = 42909004757136.

The previous prime is 100121011099969. The next prime is 100121011100017. The reversal of 100121011100012 is 210001110121001.

100121011100012 is an admirable number.

It is a super-2 number, since 2×100121011100012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100121011099966 and 100121011100002.

It is not an unprimeable number, because it can be changed into a prime (100121011100017) 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, 1787875198187 + ... + 1787875198242.

It is an arithmetic number, because the mean of its divisors is an integer number (16686835183340).

Almost surely, 2^{100121011100012} is an apocalyptic number.

It is an amenable number.

100121011100012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

100121011100012 is a wasteful number, since it uses less digits than its factorization.

100121011100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575750396440 (or 3575750396438 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100121011100012 its reverse (210001110121001), we get a palindrome (310122121221013).

The spelling of 100121011100012 in words is "one hundred trillion, one hundred twenty-one billion, eleven million, one hundred thousand, twelve".