1152200021 has 16 divisors (see below), whose sum is σ = 1331940480. Its totient is φ = 976276800.

The previous prime is 1152200011. The next prime is 1152200053. The reversal of 1152200021 is 1200022511.

It is a cyclic number.

It is not a de Polignac number, because 1152200021 - 2¹⁸ = 1151937877 is a prime.

It is a super-3 number, since 3×1152200021³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1152199969 and 1152200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152200011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788990 + ... + 790448.

It is an arithmetic number, because the mean of its divisors is an integer number (83246280).

Almost surely, 2^1152200021 is an apocalyptic number.

It is an amenable number.

1152200021 is a deficient number, since it is larger than the sum of its proper divisors (179740459).

1152200021 is a wasteful number, since it uses less digits than its factorization.

1152200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1152200021 is about 33944.0719566760. The cubic root of 1152200021 is about 1048.3572258523.

Adding to 1152200021 its reverse (1200022511), we get a palindrome (2352222532).

The spelling of 1152200021 in words is "one billion, one hundred fifty-two million, two hundred thousand, twenty-one".