1122020199870 has 128 divisors (see below), whose sum is σ = 2897108674560. Its totient is φ = 277213870080.

The previous prime is 1122020199847. The next prime is 1122020199871. The reversal of 1122020199870 is 789910202211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122020199871) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 36445804 + ... + 36476576.

It is an arithmetic number, because the mean of its divisors is an integer number (22633661520).

Almost surely, 2^{1122020199870} is an apocalyptic number.

1122020199870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122020199870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1448554337280).

1122020199870 is an abundant number, since it is smaller than the sum of its proper divisors (1775088474690).

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

1122020199870 is a wasteful number, since it uses less digits than its factorization.

1122020199870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32210.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 1122020199870 in words is "one trillion, one hundred twenty-two billion, twenty million, one hundred ninety-nine thousand, eight hundred seventy".