1200012102211 has 8 divisors (see below), whose sum is σ = 1292551946784. Its totient is φ = 1107505289280.

The previous prime is 1200012102209. The next prime is 1200012102241. The reversal of 1200012102211 is 1122012100021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200012102211 - 2¹ = 1200012102209 is a prime.

It is a super-2 number, since 2×1200012102211² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200012102191 and 1200012102200.

It is not an unprimeable number, because it can be changed into a prime (1200012102241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8182426 + ... + 8327791.

It is an arithmetic number, because the mean of its divisors is an integer number (161568993348).

Almost surely, 2^{1200012102211} is an apocalyptic number.

1200012102211 is a deficient number, since it is larger than the sum of its proper divisors (92539844573).

1200012102211 is a wasteful number, since it uses less digits than its factorization.

1200012102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16515821.

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

Adding to 1200012102211 its reverse (1122012100021), we get a palindrome (2322024202232).

The spelling of 1200012102211 in words is "one trillion, two hundred billion, twelve million, one hundred two thousand, two hundred eleven".