1802232122 has 4 divisors (see below), whose sum is σ = 2703348186. Its totient is φ = 901116060.

The previous prime is 1802232109. The next prime is 1802232143. The reversal of 1802232122 is 2212322081.

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., 1439367721 + 362864401 = 37939^2 + 19049^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450558029 + ... + 450558032.

Almost surely, 2^1802232122 is an apocalyptic number.

1802232122 is a deficient number, since it is larger than the sum of its proper divisors (901116064).

1802232122 is an equidigital number, since it uses as much as digits as its factorization.

1802232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901116063.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1802232122 is about 42452.7045310425. The cubic root of 1802232122 is about 1216.9430142605.

The spelling of 1802232122 in words is "one billion, eight hundred two million, two hundred thirty-two thousand, one hundred twenty-two".