1022121982 has 16 divisors (see below), whose sum is σ = 1752622560. Its totient is φ = 437948928.

The previous prime is 1022121977. The next prime is 1022122021. The reversal of 1022121982 is 2891212201.

It is a self number, because there is not a number n which added to its sum of digits gives 1022121982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100558 + ... + 110254.

It is an arithmetic number, because the mean of its divisors is an integer number (109538910).

Almost surely, 2^1022121982 is an apocalyptic number.

1022121982 is a deficient number, since it is larger than the sum of its proper divisors (730500578).

1022121982 is an equidigital number, since it uses as much as digits as its factorization.

1022121982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17235.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1022121982 is about 31970.6425021456. The cubic root of 1022121982 is about 1007.3202767918.

The spelling of 1022121982 in words is "one billion, twenty-two million, one hundred twenty-one thousand, nine hundred eighty-two".