1201200402112 has 28 divisors (see below), whose sum is σ = 2383702060120. Its totient is φ = 600582560256.

The previous prime is 1201200402071. The next prime is 1201200402119. The reversal of 1201200402112 is 2112040021021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1201200402119) 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, 2075839 + ... + 2590657.

Almost surely, 2^{1201200402112} is an apocalyptic number.

It is an amenable number.

1201200402112 is a deficient number, since it is larger than the sum of its proper divisors (1182501658008).

1201200402112 is an equidigital number, since it uses as much as digits as its factorization.

1201200402112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551288 (or 551278 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1201200402112 its reverse (2112040021021), we get a palindrome (3313240423133).

The spelling of 1201200402112 in words is "one trillion, two hundred one billion, two hundred million, four hundred two thousand, one hundred twelve".