1130221402 has 4 divisors (see below), whose sum is σ = 1695332106. Its totient is φ = 565110700.

The previous prime is 1130221397. The next prime is 1130221447. The reversal of 1130221402 is 2041220311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 994708521 + 135512881 = 31539^2 + 11641^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282555349 + ... + 282555352.

Almost surely, 2^1130221402 is an apocalyptic number.

1130221402 is a deficient number, since it is larger than the sum of its proper divisors (565110704).

1130221402 is an equidigital number, since it uses as much as digits as its factorization.

1130221402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565110703.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1130221402 is about 33618.7656227887. The cubic root of 1130221402 is about 1041.6484588206.

Adding to 1130221402 its reverse (2041220311), we get a palindrome (3171441713).

The spelling of 1130221402 in words is "one billion, one hundred thirty million, two hundred twenty-one thousand, four hundred two".