1121550212 has 12 divisors (see below), whose sum is σ = 1977696336. Its totient is φ = 556494120.

The previous prime is 1121550193. The next prime is 1121550217. The reversal of 1121550212 is 2120551211.

It is not an unprimeable number, because it can be changed into a prime (1121550217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069658 + ... + 1070705.

It is an arithmetic number, because the mean of its divisors is an integer number (164808028).

Almost surely, 2^1121550212 is an apocalyptic number.

It is an amenable number.

1121550212 is a deficient number, since it is larger than the sum of its proper divisors (856146124).

1121550212 is a wasteful number, since it uses less digits than its factorization.

1121550212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140498 (or 2140496 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1121550212 is about 33489.5537742742. The cubic root of 1121550212 is about 1038.9777344009.

Subtracting 1121550212 from its reverse (2120551211), we obtain a palindrome (999000999).

The spelling of 1121550212 in words is "one billion, one hundred twenty-one million, five hundred fifty thousand, two hundred twelve".