1151117212 has 36 divisors (see below), whose sum is σ = 2406694584. Its totient is φ = 479999520.

The previous prime is 1151117197. The next prime is 1151117221. The reversal of 1151117212 is 2127111511.

It is a congruent number.

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, 72114 + ... + 86617.

Almost surely, 2^1151117212 is an apocalyptic number.

It is an amenable number.

1151117212 is an abundant number, since it is smaller than the sum of its proper divisors (1255577372).

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

1151117212 is a wasteful number, since it uses less digits than its factorization.

1151117212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158786 (or 158777 counting only the distinct ones).

The product of its digits is 140, while the sum is 22.

The square root of 1151117212 is about 33928.1183091547. The cubic root of 1151117212 is about 1048.0287162168.

Adding to 1151117212 its reverse (2127111511), we get a palindrome (3278228723).

It can be divided in two parts, 1151117 and 212, that added together give a square (1151329 = 1073²).

The spelling of 1151117212 in words is "one billion, one hundred fifty-one million, one hundred seventeen thousand, two hundred twelve".