1022121200982 has 128 divisors (see below), whose sum is σ = 2388857103360. Its totient is φ = 285524144640.

The previous prime is 1022121200981. The next prime is 1022121200999. The reversal of 1022121200982 is 2890021212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121200981) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 518053348 + ... + 518055320.

It is an arithmetic number, because the mean of its divisors is an integer number (18662946120).

Almost surely, 2^{1022121200982} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022121200982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194428551680).

1022121200982 is an abundant number, since it is smaller than the sum of its proper divisors (1366735902378).

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

1022121200982 is a wasteful number, since it uses less digits than its factorization.

1022121200982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 1022121200982 in words is "one trillion, twenty-two billion, one hundred twenty-one million, two hundred thousand, nine hundred eighty-two".