1421233522 has 4 divisors (see below), whose sum is σ = 2131850286. Its totient is φ = 710616760.

The previous prime is 1421233487. The next prime is 1421233543. The reversal of 1421233522 is 2253321241.

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., 755645121 + 665588401 = 27489^2 + 25799^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355308379 + ... + 355308382.

Almost surely, 2^1421233522 is an apocalyptic number.

1421233522 is a deficient number, since it is larger than the sum of its proper divisors (710616764).

1421233522 is an equidigital number, since it uses as much as digits as its factorization.

1421233522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710616763.

The product of its digits is 2880, while the sum is 25.

The square root of 1421233522 is about 37699.2509474658. The cubic root of 1421233522 is about 1124.3162322641.

Adding to 1421233522 its reverse (2253321241), we get a palindrome (3674554763).

The spelling of 1421233522 in words is "one billion, four hundred twenty-one million, two hundred thirty-three thousand, five hundred twenty-two".