1122221412 has 48 divisors (see below), whose sum is σ = 3133271680. Its totient is φ = 345298464.

The previous prime is 1122221383. The next prime is 1122221413. The reversal of 1122221412 is 2141222211.

1122221412 is a `hidden beast` number, since 11 + 22 + 221 + 412 = 666.

1122221412 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1122221413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398248 + ... + 401055.

Almost surely, 2^1122221412 is an apocalyptic number.

1122221412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122221412 is an abundant number, since it is smaller than the sum of its proper divisors (2011050268).

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

1122221412 is a wasteful number, since it uses less digits than its factorization.

1122221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799329 (or 799321 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 1122221412 is about 33499.5733107155. The cubic root of 1122221412 is about 1039.1849543662.

Adding to 1122221412 its reverse (2141222211), we get a palindrome (3263443623).

The spelling of 1122221412 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, four hundred twelve".