1200100222205 has 16 divisors (see below), whose sum is σ = 1461952454400. Its totient is φ = 945532011072.

The previous prime is 1200100222171. The next prime is 1200100222271. The reversal of 1200100222205 is 5022220010021.

It is a cyclic number.

It is not a de Polignac number, because 1200100222205 - 2⁶ = 1200100222141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1045052 + ... + 1868778.

It is an arithmetic number, because the mean of its divisors is an integer number (91372028400).

Almost surely, 2^{1200100222205} is an apocalyptic number.

It is an amenable number.

1200100222205 is a deficient number, since it is larger than the sum of its proper divisors (261852232195).

1200100222205 is an equidigital number, since it uses as much as digits as its factorization.

1200100222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828148.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 1200100222205 its reverse (5022220010021), we get a palindrome (6222320232226).

The spelling of 1200100222205 in words is "one trillion, two hundred billion, one hundred million, two hundred twenty-two thousand, two hundred five".