1122112121130 has 512 divisors, whose sum is σ = 4099673088000. Its totient is φ = 215227756800.

The previous prime is 1122112121077. The next prime is 1122112121131. The reversal of 1122112121130 is 311212112211.

It is a happy number.

1122112121130 is a `hidden beast` number, since 112 + 211 + 212 + 1 + 130 = 666.

It is a super-2 number, since 2×1122112121130² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1122112121131) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 13200865 + ... + 13285595.

It is an arithmetic number, because the mean of its divisors is an integer number (8007174000).

Almost surely, 2^{1122112121130} is an apocalyptic number.

1122112121130 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 1122112121130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049836544000).

1122112121130 is an abundant number, since it is smaller than the sum of its proper divisors (2977560966870).

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

1122112121130 is a wasteful number, since it uses less digits than its factorization.

1122112121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84792 (or 84772 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1122112121130 its reverse (311212112211), we get a palindrome (1433324233341).

The spelling of 1122112121130 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, one hundred thirty".