1200012211223 has 12 divisors (see below), whose sum is σ = 1406924174592. Its totient is φ = 1020482820000.

The previous prime is 1200012211219. The next prime is 1200012211231. The reversal of 1200012211223 is 3221122100021.

It is not a de Polignac number, because 1200012211223 - 2² = 1200012211219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200012211423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96411278 + ... + 96423723.

It is an arithmetic number, because the mean of its divisors is an integer number (117243681216).

Almost surely, 2^{1200012211223} is an apocalyptic number.

1200012211223 is a deficient number, since it is larger than the sum of its proper divisors (206911963369).

1200012211223 is a wasteful number, since it uses less digits than its factorization.

1200012211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192835142 (or 192835135 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1200012211223 its reverse (3221122100021), we get a palindrome (4421134311244).

The spelling of 1200012211223 in words is "one trillion, two hundred billion, twelve million, two hundred eleven thousand, two hundred twenty-three".