1320422121 has 8 divisors (see below), whose sum is σ = 1956180960. Its totient is φ = 880281396.

The previous prime is 1320422099. The next prime is 1320422123. The reversal of 1320422121 is 1212240231.

It is a happy number.

It is not a de Polignac number, because 1320422121 - 2¹⁵ = 1320389353 is a prime.

It is a super-2 number, since 2×1320422121² = 3487029155252277282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320422094 and 1320422103.

It is not an unprimeable number, because it can be changed into a prime (1320422123) 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, 24452235 + ... + 24452288.

It is an arithmetic number, because the mean of its divisors is an integer number (244522620).

Almost surely, 2^1320422121 is an apocalyptic number.

It is an amenable number.

1320422121 is a deficient number, since it is larger than the sum of its proper divisors (635758839).

1320422121 is an equidigital number, since it uses as much as digits as its factorization.

1320422121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48904532 (or 48904526 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1320422121 is about 36337.6130338799. The cubic root of 1320422121 is about 1097.0782299448.

Adding to 1320422121 its reverse (1212240231), we get a palindrome (2532662352).

The spelling of 1320422121 in words is "one billion, three hundred twenty million, four hundred twenty-two thousand, one hundred twenty-one".