1002021120198 has 24 divisors (see below), whose sum is σ = 2481195155088. Its totient is φ = 286291748592.

The previous prime is 1002021120181. The next prime is 1002021120301. The reversal of 1002021120198 is 8910211202001.

1002021120198 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3976274161 + ... + 3976274412.

It is an arithmetic number, because the mean of its divisors is an integer number (103383131462).

Almost surely, 2^{1002021120198} is an apocalyptic number.

1002021120198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1002021120198 is an abundant number, since it is smaller than the sum of its proper divisors (1479174034890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002021120198 is a wasteful number, since it uses less digits than its factorization.

1002021120198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952548588 (or 7952548585 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

Adding to 1002021120198 its reverse (8910211202001), we get a palindrome (9912232322199).

The spelling of 1002021120198 in words is "one trillion, two billion, twenty-one million, one hundred twenty thousand, one hundred ninety-eight".