1122011400 has 48 divisors (see below), whose sum is σ = 3478237200. Its totient is φ = 299202880.

The previous prime is 1122011399. The next prime is 1122011411. The reversal of 1122011400 is 41102211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 934410 + ... + 935609.

It is an arithmetic number, because the mean of its divisors is an integer number (72463275).

Almost surely, 2^1122011400 is an apocalyptic number.

1122011400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122011400 is an abundant number, since it is smaller than the sum of its proper divisors (2356225800).

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

1122011400 is a wasteful number, since it uses less digits than its factorization.

1122011400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870038 (or 1870029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1122011400 is about 33496.4386166649. The cubic root of 1122011400 is about 1039.1201261236.

Adding to 1122011400 its reverse (41102211), we get a palindrome (1163113611).

The spelling of 1122011400 in words is "one billion, one hundred twenty-two million, eleven thousand, four hundred".