1155412122 has 8 divisors (see below), whose sum is σ = 2310824256. Its totient is φ = 385137372.

The previous prime is 1155412121. The next prime is 1155412133. The reversal of 1155412122 is 2212145511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1155412122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1155412092 and 1155412101.

It is not an unprimeable number, because it can be changed into a prime (1155412121) 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, 96284338 + ... + 96284349.

It is an arithmetic number, because the mean of its divisors is an integer number (288853032).

Almost surely, 2^1155412122 is an apocalyptic number.

1155412122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1155412122 is a wasteful number, since it uses less digits than its factorization.

1155412122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192568692.

The product of its digits is 800, while the sum is 24.

The square root of 1155412122 is about 33991.3536358881. The cubic root of 1155412122 is about 1049.3305247102.

Adding to 1155412122 its reverse (2212145511), we get a palindrome (3367557633).

The spelling of 1155412122 in words is "one billion, one hundred fifty-five million, four hundred twelve thousand, one hundred twenty-two".