1121402217 has 8 divisors (see below), whose sum is σ = 1610218624. Its totient is φ = 690093648.

The previous prime is 1121402171. The next prime is 1121402239. The reversal of 1121402217 is 7122041211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121402217 - 2¹⁵ = 1121369449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121402193 and 1121402202.

It is not an unprimeable number, because it can be changed into a prime (1121402257) 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 7 ways as a sum of consecutive naturals, for example, 14376913 + ... + 14376990.

It is an arithmetic number, because the mean of its divisors is an integer number (201277328).

Almost surely, 2^1121402217 is an apocalyptic number.

It is an amenable number.

1121402217 is a deficient number, since it is larger than the sum of its proper divisors (488816407).

1121402217 is a wasteful number, since it uses less digits than its factorization.

1121402217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28753919.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1121402217 is about 33487.3441317761. The cubic root of 1121402217 is about 1038.9320326951.

Adding to 1121402217 its reverse (7122041211), we get a palindrome (8243443428).

The spelling of 1121402217 in words is "one billion, one hundred twenty-one million, four hundred two thousand, two hundred seventeen".