1522220422 has 4 divisors (see below), whose sum is σ = 2283330636. Its totient is φ = 761110210.

The previous prime is 1522220383. The next prime is 1522220423. The reversal of 1522220422 is 2240222251.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1522220393 and 1522220402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522220423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380555104 + ... + 380555107.

It is an arithmetic number, because the mean of its divisors is an integer number (570832659).

Almost surely, 2^1522220422 is an apocalyptic number.

1522220422 is a deficient number, since it is larger than the sum of its proper divisors (761110214).

1522220422 is an equidigital number, since it uses as much as digits as its factorization.

1522220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761110213.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1522220422 is about 39015.6432985540. The cubic root of 1522220422 is about 1150.3390108275.

Adding to 1522220422 its reverse (2240222251), we get a palindrome (3762442673).

The spelling of 1522220422 in words is "one billion, five hundred twenty-two million, two hundred twenty thousand, four hundred twenty-two".