2421121075 has 12 divisors (see below), whose sum is σ = 3160200760. Its totient is φ = 1834954560.

The previous prime is 2421121069. The next prime is 2421121097. The reversal of 2421121075 is 5701211242.

It is not a de Polignac number, because 2421121075 - 2²³ = 2412732467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2548074 + ... + 2549023.

Almost surely, 2^2421121075 is an apocalyptic number.

2421121075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2421121075 is a deficient number, since it is larger than the sum of its proper divisors (739079685).

2421121075 is a wasteful number, since it uses less digits than its factorization.

2421121075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097126 (or 5097121 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2421121075 is about 49204.8887306942. Note that the first 3 decimals coincide. The cubic root of 2421121075 is about 1342.7819746694.

The spelling of 2421121075 in words is "two billion, four hundred twenty-one million, one hundred twenty-one thousand, seventy-five".