1132221021 has 16 divisors (see below), whose sum is σ = 1534677120. Its totient is φ = 742348800.

The previous prime is 1132221017. The next prime is 1132221059. The reversal of 1132221021 is 1201222311.

It is not a de Polignac number, because 1132221021 - 2² = 1132221017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132221121) 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, 71421 + ... + 85821.

It is an arithmetic number, because the mean of its divisors is an integer number (95917320).

Almost surely, 2^1132221021 is an apocalyptic number.

It is an amenable number.

1132221021 is a deficient number, since it is larger than the sum of its proper divisors (402456099).

1132221021 is a wasteful number, since it uses less digits than its factorization.

1132221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14836.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1132221021 is about 33648.4921058879. The cubic root of 1132221021 is about 1042.2624013269.

Adding to 1132221021 its reverse (1201222311), we get a palindrome (2333443332).

The spelling of 1132221021 in words is "one billion, one hundred thirty-two million, two hundred twenty-one thousand, twenty-one".