1200202144 has 48 divisors (see below), whose sum is σ = 2394100800. Its totient is φ = 592220160.

The previous prime is 1200202117. The next prime is 1200202147. The reversal of 1200202144 is 4412020021.

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 (1200202147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1479499 + ... + 1480309.

It is an arithmetic number, because the mean of its divisors is an integer number (49877100).

Almost surely, 2^1200202144 is an apocalyptic number.

It is an amenable number.

1200202144 is a deficient number, since it is larger than the sum of its proper divisors (1193898656).

1200202144 is a wasteful number, since it uses less digits than its factorization.

1200202144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1200202144 is about 34643.9337258343. The cubic root of 1200202144 is about 1062.7182352918.

Adding to 1200202144 its reverse (4412020021), we get a palindrome (5612222165).

The spelling of 1200202144 in words is "one billion, two hundred million, two hundred two thousand, one hundred forty-four".