1121220124 has 12 divisors (see below), whose sum is σ = 1968327144. Its totient is φ = 558840944.

The previous prime is 1121220103. The next prime is 1121220157. The reversal of 1121220124 is 4210221211.

It is a junction number, because it is equal to n+sod(n) for n = 1121220098 and 1121220107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440854 + ... + 443389.

It is an arithmetic number, because the mean of its divisors is an integer number (164027262).

Almost surely, 2^1121220124 is an apocalyptic number.

It is an amenable number.

1121220124 is a deficient number, since it is larger than the sum of its proper divisors (847107020).

1121220124 is a wasteful number, since it uses less digits than its factorization.

1121220124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884564 (or 884562 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1121220124 is about 33484.6251882860. The cubic root of 1121220124 is about 1038.8757958134.

Adding to 1121220124 its reverse (4210221211), we get a palindrome (5331441335).

The spelling of 1121220124 in words is "one billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twenty-four".