1200250420011 has 24 divisors (see below), whose sum is σ = 1845932334480. Its totient is φ = 748891032576.

The previous prime is 1200250420009. The next prime is 1200250420067. The reversal of 1200250420011 is 1100240520021.

1200250420011 is a `hidden beast` number, since 1 + 200 + 250 + 4 + 200 + 11 = 666.

It is not a de Polignac number, because 1200250420011 - 2¹ = 1200250420009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200250420001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21885390 + ... + 21940163.

It is an arithmetic number, because the mean of its divisors is an integer number (76913847270).

Almost surely, 2^{1200250420011} is an apocalyptic number.

1200250420011 is a deficient number, since it is larger than the sum of its proper divisors (645681914469).

1200250420011 is a wasteful number, since it uses less digits than its factorization.

1200250420011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43825755 (or 43825752 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 1200250420011 its reverse (1100240520021), we get a palindrome (2300490940032).

It can be divided in two parts, 1200250 and 420011, that added together give a palindrome (1620261).

The spelling of 1200250420011 in words is "one trillion, two hundred billion, two hundred fifty million, four hundred twenty thousand, eleven".