1121010221987 has 8 divisors (see below), whose sum is σ = 1169835440640. Its totient is φ = 1072192140360.

The previous prime is 1121010221983. The next prime is 1121010222023. The reversal of 1121010221987 is 7891220101211.

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 1121010221987 - 2² = 1121010221983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121010221983) 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, 1462037 + ... + 2092742.

It is an arithmetic number, because the mean of its divisors is an integer number (146229430080).

Almost surely, 2^{1121010221987} is an apocalyptic number.

1121010221987 is a deficient number, since it is larger than the sum of its proper divisors (48825218653).

1121010221987 is a wasteful number, since it uses less digits than its factorization.

1121010221987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568513.

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 1121010221987 in words is "one trillion, one hundred twenty-one billion, ten million, two hundred twenty-one thousand, nine hundred eighty-seven".