1111020221982 has 64 divisors (see below), whose sum is σ = 2464549401600. Its totient is φ = 331050499200.

The previous prime is 1111020221959. The next prime is 1111020222017. The reversal of 1111020221982 is 2891220201111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13417644 + ... + 13500192.

It is an arithmetic number, because the mean of its divisors is an integer number (38508584400).

Almost surely, 2^{1111020221982} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111020221982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232274700800).

1111020221982 is an abundant number, since it is smaller than the sum of its proper divisors (1353529179618).

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

1111020221982 is a wasteful number, since it uses less digits than its factorization.

1111020221982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85969.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 1111020221982 in words is "one trillion, one hundred eleven billion, twenty million, two hundred twenty-one thousand, nine hundred eighty-two".