2121001110124 has 24 divisors (see below), whose sum is σ = 3997375562880. Its totient is φ = 978898061184.

The previous prime is 2121001110103. The next prime is 2121001110149. The reversal of 2121001110124 is 4210111001212.

It is a junction number, because it is equal to n+sod(n) for n = 2121001110098 and 2121001110107.

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, 1559712 + ... + 2583544.

It is an arithmetic number, because the mean of its divisors is an integer number (166557315120).

Almost surely, 2^{2121001110124} is an apocalyptic number.

It is an amenable number.

2121001110124 is a deficient number, since it is larger than the sum of its proper divisors (1876374452756).

2121001110124 is a wasteful number, since it uses less digits than its factorization.

2121001110124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063689 (or 1063687 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121001110124 its reverse (4210111001212), we get a palindrome (6331112111336).

The spelling of 2121001110124 in words is "two trillion, one hundred twenty-one billion, one million, one hundred ten thousand, one hundred twenty-four".