1200012202111 has 16 divisors (see below), whose sum is σ = 1228721356800. Its totient is φ = 1171436992128.

The previous prime is 1200012202097. The next prime is 1200012202187. The reversal of 1200012202111 is 1112022100021.

It is a cyclic number.

It is not a de Polignac number, because 1200012202111 - 2⁹ = 1200012201599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200012202091 and 1200012202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200012202811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104171010 + ... + 104182528.

It is an arithmetic number, because the mean of its divisors is an integer number (76795084800).

Almost surely, 2^{1200012202111} is an apocalyptic number.

1200012202111 is a deficient number, since it is larger than the sum of its proper divisors (28709154689).

1200012202111 is a wasteful number, since it uses less digits than its factorization.

1200012202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17118.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200012202111 its reverse (1112022100021), we get a palindrome (2312034302132).

The spelling of 1200012202111 in words is "one trillion, two hundred billion, twelve million, two hundred two thousand, one hundred eleven".