1200214128 has 40 divisors (see below), whose sum is σ = 3135402000. Its totient is φ = 395574784.

The previous prime is 1200214123. The next prime is 1200214133. The reversal of 1200214128 is 8214120021.

It is an interprime number because it is at equal distance from previous prime (1200214123) and next prime (1200214133).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200214123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136203 + ... + 144746.

It is an arithmetic number, because the mean of its divisors is an integer number (78385050).

Almost surely, 2^1200214128 is an apocalyptic number.

It is an amenable number.

1200214128 is an abundant number, since it is smaller than the sum of its proper divisors (1935187872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200214128 is a wasteful number, since it uses less digits than its factorization.

1200214128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281049 (or 281043 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 1200214128 is about 34644.1066849760. The cubic root of 1200214128 is about 1062.7217723551.

Adding to 1200214128 its reverse (8214120021), we get a palindrome (9414334149).

The spelling of 1200214128 in words is "one billion, two hundred million, two hundred fourteen thousand, one hundred twenty-eight".