1200111012205 has 32 divisors (see below), whose sum is σ = 1649744838144. Its totient is φ = 820996382976.

The previous prime is 1200111012197. The next prime is 1200111012211. The reversal of 1200111012205 is 5022101110021.

It is not a de Polignac number, because 1200111012205 - 2³ = 1200111012197 is a prime.

It is a super-3 number, since 3×1200111012205³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

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, 26320287 + ... + 26365843.

It is an arithmetic number, because the mean of its divisors is an integer number (51554526192).

Almost surely, 2^{1200111012205} is an apocalyptic number.

It is an amenable number.

1200111012205 is a deficient number, since it is larger than the sum of its proper divisors (449633825939).

1200111012205 is a wasteful number, since it uses less digits than its factorization.

1200111012205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47325.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 1200111012205 its reverse (5022101110021), we get a palindrome (6222212122226).

The spelling of 1200111012205 in words is "one trillion, two hundred billion, one hundred eleven million, twelve thousand, two hundred five".