1022120001998 has 8 divisors (see below), whose sum is σ = 1538174075592. Its totient is φ = 509395310136.

The previous prime is 1022120001989. The next prime is 1022120002031. The reversal of 1022120001998 is 8991000212201.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832344665 + ... + 832345892.

It is an arithmetic number, because the mean of its divisors is an integer number (192271759449).

Almost surely, 2^{1022120001998} is an apocalyptic number.

1022120001998 is a deficient number, since it is larger than the sum of its proper divisors (516054073594).

1022120001998 is a wasteful number, since it uses less digits than its factorization.

1022120001998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664690866.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 1022120001998 in words is "one trillion, twenty-two billion, one hundred twenty million, one thousand, nine hundred ninety-eight".