1142201120 has 48 divisors (see below), whose sum is σ = 2701936440. Its totient is φ = 456290304.

The previous prime is 1142201111. The next prime is 1142201153. The reversal of 1142201120 is 211022411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 757570576 + 384630544 = 27524^2 + 19612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1142201095 and 1142201104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132296 + ... + 140664.

Almost surely, 2^1142201120 is an apocalyptic number.

1142201120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142201120 is an abundant number, since it is smaller than the sum of its proper divisors (1559735320).

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

1142201120 is an equidigital number, since it uses as much as digits as its factorization.

1142201120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237 (or 9229 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1142201120 is about 33796.4660874477. The cubic root of 1142201120 is about 1045.3158298442.

Adding to 1142201120 its reverse (211022411), we get a palindrome (1353223531).

The spelling of 1142201120 in words is "one billion, one hundred forty-two million, two hundred one thousand, one hundred twenty".