1200020202112 has 32 divisors (see below), whose sum is σ = 2391223734900. Its totient is φ = 599869931520.

The previous prime is 1200020202109. The next prime is 1200020202221. The reversal of 1200020202112 is 2112020200021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1023868754496 + 176151447616 = 1011864^2 + 419704^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 1200020202092 and 1200020202101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543939 + ... + 1641922.

Almost surely, 2^{1200020202112} is an apocalyptic number.

It is an amenable number.

1200020202112 is a deficient number, since it is larger than the sum of its proper divisors (1191203532788).

1200020202112 is an equidigital number, since it uses as much as digits as its factorization.

1200020202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190164 (or 2190152 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1200020202112 its reverse (2112020200021), we get a palindrome (3312040402133).

The spelling of 1200020202112 in words is "one trillion, two hundred billion, twenty million, two hundred two thousand, one hundred twelve".