1000123223012 has 96 divisors (see below), whose sum is σ = 1859803545600. Its totient is φ = 469924444800.

The previous prime is 1000123222999. The next prime is 1000123223041. The reversal of 1000123223012 is 2103223210001.

It is a super-2 number, since 2×1000123223012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347384189 + ... + 347387067.

It is an arithmetic number, because the mean of its divisors is an integer number (19372953600).

Almost surely, 2^{1000123223012} is an apocalyptic number.

It is an amenable number.

1000123223012 is a deficient number, since it is larger than the sum of its proper divisors (859680322588).

1000123223012 is a wasteful number, since it uses less digits than its factorization.

1000123223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1000123223012 its reverse (2103223210001), we get a palindrome (3103346433013).

The spelling of 1000123223012 in words is "one trillion, one hundred twenty-three million, two hundred twenty-three thousand, twelve".