1120122421 has 16 divisors (see below), whose sum is σ = 1239167808. Its totient is φ = 1004032000.

The previous prime is 1120122413. The next prime is 1120122449. The reversal of 1120122421 is 1242210211.

It is a cyclic number.

It is not a de Polignac number, because 1120122421 - 2³ = 1120122413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120122395 and 1120122404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120122491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283566 + ... + 287488.

It is an arithmetic number, because the mean of its divisors is an integer number (77447988).

Almost surely, 2^1120122421 is an apocalyptic number.

1120122421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1120122421 is a deficient number, since it is larger than the sum of its proper divisors (119045387).

1120122421 is a wasteful number, since it uses less digits than its factorization.

1120122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1120122421 is about 33468.2300249057. The cubic root of 1120122421 is about 1038.5366565108.

Adding to 1120122421 its reverse (1242210211), we get a palindrome (2362332632).

The spelling of 1120122421 in words is "one billion, one hundred twenty million, one hundred twenty-two thousand, four hundred twenty-one".