1122199999938 has 192 divisors, whose sum is σ = 2645360640000. Its totient is φ = 342950993280.

The previous prime is 1122199999937. The next prime is 1122199999939. The reversal of 1122199999938 is 8399999912211.

It is an interprime number because it is at equal distance from previous prime (1122199999937) and next prime (1122199999939).

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1122199999933) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 877403583 + ... + 877404861.

It is an arithmetic number, because the mean of its divisors is an integer number (13777920000).

Almost surely, 2^{1122199999938} is an apocalyptic number.

1122199999938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122199999938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322680320000).

1122199999938 is an abundant number, since it is smaller than the sum of its proper divisors (1523160640062).

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

1122199999938 is a wasteful number, since it uses less digits than its factorization.

1122199999938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325 (or 2322 counting only the distinct ones).

The product of its digits is 51018336, while the sum is 72.

The spelling of 1122199999938 in words is "one trillion, one hundred twenty-two billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-eight".