1200120202011 has 4 divisors (see below), whose sum is σ = 1600160269352. Its totient is φ = 800080134672.

The previous prime is 1200120202009. The next prime is 1200120202019. The reversal of 1200120202011 is 1102020210021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1200120202011 - 2¹ = 1200120202009 is a prime.

It is a super-4 number, since 4×1200120202011⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200120202019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200020033666 + ... + 200020033671.

It is an arithmetic number, because the mean of its divisors is an integer number (400040067338).

Almost surely, 2^{1200120202011} is an apocalyptic number.

1200120202011 is a deficient number, since it is larger than the sum of its proper divisors (400040067341).

1200120202011 is an equidigital number, since it uses as much as digits as its factorization.

1200120202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400040067340.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1200120202011 its reverse (1102020210021), we get a palindrome (2302140412032).

The spelling of 1200120202011 in words is "one trillion, two hundred billion, one hundred twenty million, two hundred two thousand, eleven".