100000121200124 has 24 divisors (see below), whose sum is σ = 176737011010560. Its totient is φ = 49504039855344.

The previous prime is 100000121200069. The next prime is 100000121200127. The reversal of 100000121200124 is 421002121000001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100000121200099 and 100000121200108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000121200127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24009284 + ... + 27864779.

It is an arithmetic number, because the mean of its divisors is an integer number (7364042125440).

Almost surely, 2^{100000121200124} is an apocalyptic number.

It is an amenable number.

100000121200124 is a deficient number, since it is larger than the sum of its proper divisors (76736889810436).

100000121200124 is a wasteful number, since it uses less digits than its factorization.

100000121200124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51878849 (or 51878847 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100000121200124 its reverse (421002121000001), we get a palindrome (521002242200125).

The spelling of 100000121200124 in words is "one hundred trillion, one hundred twenty-one million, two hundred thousand, one hundred twenty-four".