1204420124421 has 24 divisors (see below), whose sum is σ = 1842653292480. Its totient is φ = 755468850816.

The previous prime is 1204420124407. The next prime is 1204420124459. The reversal of 1204420124421 is 1244210244021.

1204420124421 is a `hidden beast` number, since 1 + 204 + 4 + 2 + 0 + 12 + 442 + 1 = 666.

It is not a de Polignac number, because 1204420124421 - 2²⁵ = 1204386569989 is a prime.

It is a super-2 number, since 2×1204420124421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204420124461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 807255 + ... + 1749428.

It is an arithmetic number, because the mean of its divisors is an integer number (76777220520).

Almost surely, 2^{1204420124421} is an apocalyptic number.

It is an amenable number.

1204420124421 is a deficient number, since it is larger than the sum of its proper divisors (638233168059).

1204420124421 is a wasteful number, since it uses less digits than its factorization.

1204420124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559785 (or 2559782 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 1204420124421 its reverse (1244210244021), we get a palindrome (2448630368442).

The spelling of 1204420124421 in words is "one trillion, two hundred four billion, four hundred twenty million, one hundred twenty-four thousand, four hundred twenty-one".