1032157221 has 8 divisors (see below), whose sum is σ = 1377602304. Its totient is φ = 687408480.

The previous prime is 1032157219. The next prime is 1032157249. The reversal of 1032157221 is 1227512301.

1032157221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1032157221 - 2¹ = 1032157219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1032157191 and 1032157200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032157921) 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, 170616 + ... + 176561.

It is an arithmetic number, because the mean of its divisors is an integer number (172200288).

Almost surely, 2^1032157221 is an apocalyptic number.

It is an amenable number.

1032157221 is a deficient number, since it is larger than the sum of its proper divisors (345445083).

1032157221 is an equidigital number, since it uses as much as digits as its factorization.

1032157221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348171.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1032157221 is about 32127.2037532058. The cubic root of 1032157221 is about 1010.6061848098.

Adding to 1032157221 its reverse (1227512301), we get a palindrome (2259669522).

The spelling of 1032157221 in words is "one billion, thirty-two million, one hundred fifty-seven thousand, two hundred twenty-one".