1121021297 has 8 divisors (see below), whose sum is σ = 1238413440. Its totient is φ = 1006209360.

The previous prime is 1121021281. The next prime is 1121021333. The reversal of 1121021297 is 7921201211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121021297 - 2⁴ = 1121021281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121021197) 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, 644138 + ... + 645875.

It is an arithmetic number, because the mean of its divisors is an integer number (154801680).

Almost surely, 2^1121021297 is an apocalyptic number.

It is an amenable number.

1121021297 is a deficient number, since it is larger than the sum of its proper divisors (117392143).

1121021297 is a wasteful number, since it uses less digits than its factorization.

1121021297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290103.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1121021297 is about 33481.6561269003. The cubic root of 1121021297 is about 1038.8143839151.

The spelling of 1121021297 in words is "one billion, one hundred twenty-one million, twenty-one thousand, two hundred ninety-seven".