1156223643222 has 8 divisors (see below), whose sum is σ = 2312447286456. Its totient is φ = 385407881072.

The previous prime is 1156223643203. The next prime is 1156223643251. The reversal of 1156223643222 is 2223463226511.

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

1156223643222 is an admirable number.

It is a super-2 number, since 2×1156223643222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96351970263 + ... + 96351970274.

It is an arithmetic number, because the mean of its divisors is an integer number (289055910807).

Almost surely, 2^{1156223643222} is an apocalyptic number.

1156223643222 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.

1156223643222 is a wasteful number, since it uses less digits than its factorization.

1156223643222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192703940542.

The product of its digits is 207360, while the sum is 39.

Adding to 1156223643222 its reverse (2223463226511), we get a palindrome (3379686869733).

The spelling of 1156223643222 in words is "one trillion, one hundred fifty-six billion, two hundred twenty-three million, six hundred forty-three thousand, two hundred twenty-two".