1122020021986 has 4 divisors (see below), whose sum is σ = 1683030032982. Its totient is φ = 561010010992.

The previous prime is 1122020021981. The next prime is 1122020021987. The reversal of 1122020021986 is 6891200202211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 672408200025 + 449611821961 = 820005^2 + 670531^2 .

It is not an unprimeable number, because it can be changed into a prime (1122020021981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280505005495 + ... + 280505005498.

Almost surely, 2^{1122020021986} is an apocalyptic number.

1122020021986 is a deficient number, since it is larger than the sum of its proper divisors (561010010996).

1122020021986 is an equidigital number, since it uses as much as digits as its factorization.

1122020021986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561010010995.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 1122020021986 in words is "one trillion, one hundred twenty-two billion, twenty million, twenty-one thousand, nine hundred eighty-six".