1200001111202 has 4 divisors (see below), whose sum is σ = 1800001666806. Its totient is φ = 600000555600.

The previous prime is 1200001111201. The next prime is 1200001111207. The reversal of 1200001111202 is 2021111000021.

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

It can be written as a sum of positive squares in only one way, i.e., 1199986602721 + 14508481 = 1095439^2 + 3809^2 .

It is not an unprimeable number, because it can be changed into a prime (1200001111201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300000277799 + ... + 300000277802.

Almost surely, 2^{1200001111202} is an apocalyptic number.

1200001111202 is a deficient number, since it is larger than the sum of its proper divisors (600000555604).

1200001111202 is an equidigital number, since it uses as much as digits as its factorization.

1200001111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600000555603.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200001111202 its reverse (2021111000021), we get a palindrome (3221112111223).

The spelling of 1200001111202 in words is "one trillion, two hundred billion, one million, one hundred eleven thousand, two hundred two".