1982297129922 has 72 divisors (see below), whose sum is σ = 4516852996656. Its totient is φ = 627955511904.

The previous prime is 1982297129903. The next prime is 1982297129941. The reversal of 1982297129922 is 2299217922891.

It is an interprime number because it is at equal distance from previous prime (1982297129903) and next prime (1982297129941).

It is a super-2 number, since 2×1982297129922² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1982297129922.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 124213 + ... + 1994999.

It is an arithmetic number, because the mean of its divisors is an integer number (62734069398).

Almost surely, 2^{1982297129922} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1982297129922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258426498328).

1982297129922 is an abundant number, since it is smaller than the sum of its proper divisors (2534555866734).

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

1982297129922 is a wasteful number, since it uses less digits than its factorization.

1982297129922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870912 (or 1870872 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The spelling of 1982297129922 in words is "one trillion, nine hundred eighty-two billion, two hundred ninety-seven million, one hundred twenty-nine thousand, nine hundred twenty-two".