1120200121 has 4 divisors (see below), whose sum is σ = 1133696592. Its totient is φ = 1106703652.

The previous prime is 1120200113. The next prime is 1120200143. The reversal of 1120200121 is 1210020211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1120200121 - 2³ = 1120200113 is a prime.

It is a super-2 number, since 2×1120200121² = 2509696622176829282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120200098 and 1120200107.

It is not an unprimeable number, because it can be changed into a prime (1120200101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6748111 + ... + 6748276.

It is an arithmetic number, because the mean of its divisors is an integer number (283424148).

Almost surely, 2^1120200121 is an apocalyptic number.

It is an amenable number.

1120200121 is a deficient number, since it is larger than the sum of its proper divisors (13496471).

1120200121 is an equidigital number, since it uses as much as digits as its factorization.

1120200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13496470.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1120200121 is about 33469.3908071241. The cubic root of 1120200121 is about 1038.5606694909.

Adding to 1120200121 its reverse (1210020211), we get a palindrome (2330220332).

The spelling of 1120200121 in words is "one billion, one hundred twenty million, two hundred thousand, one hundred twenty-one".