115533551222 has 16 divisors (see below), whose sum is σ = 173815231920. Its totient is φ = 57595339008.

The previous prime is 115533551209. The next prime is 115533551227. The reversal of 115533551222 is 222155335511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115533551227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136729 + ... + 1234187.

It is an arithmetic number, because the mean of its divisors is an integer number (10863451995).

Almost surely, 2^115533551222 is an apocalyptic number.

115533551222 is a deficient number, since it is larger than the sum of its proper divisors (58281680698).

115533551222 is a wasteful number, since it uses less digits than its factorization.

115533551222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99215.

The product of its digits is 45000, while the sum is 35.

Adding to 115533551222 its reverse (222155335511), we get a palindrome (337688886733).

The spelling of 115533551222 in words is "one hundred fifteen billion, five hundred thirty-three million, five hundred fifty-one thousand, two hundred twenty-two".