1140021201 has 32 divisors (see below), whose sum is σ = 1686297600. Its totient is φ = 679320000.

The previous prime is 1140021137. The next prime is 1140021209. The reversal of 1140021201 is 1021200411.

It is a happy number.

It is not a de Polignac number, because 1140021201 - 2⁶ = 1140021137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1140021209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505326 + ... + 507576.

It is an arithmetic number, because the mean of its divisors is an integer number (52696800).

Almost surely, 2^1140021201 is an apocalyptic number.

1140021201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1140021201 is a deficient number, since it is larger than the sum of its proper divisors (546276399).

1140021201 is a wasteful number, since it uses less digits than its factorization.

1140021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1140021201 is about 33764.1999905225. The cubic root of 1140021201 is about 1044.6504026582.

Adding to 1140021201 its reverse (1021200411), we get a palindrome (2161221612).

The spelling of 1140021201 in words is "one billion, one hundred forty million, twenty-one thousand, two hundred one".