20440222522 has 4 divisors (see below), whose sum is σ = 30660333786. Its totient is φ = 10220111260.

The previous prime is 20440222507. The next prime is 20440222547. The reversal of 20440222522 is 22522204402.

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., 11532826881 + 8907395641 = 107391^2 + 94379^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110055629 + ... + 5110055632.

Almost surely, 2^20440222522 is an apocalyptic number.

20440222522 is a deficient number, since it is larger than the sum of its proper divisors (10220111264).

20440222522 is a wasteful number, since it uses less digits than its factorization.

20440222522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220111263.

The product of its (nonzero) digits is 5120, while the sum is 25.

Adding to 20440222522 its reverse (22522204402), we get a palindrome (42962426924).

The spelling of 20440222522 in words is "twenty billion, four hundred forty million, two hundred twenty-two thousand, five hundred twenty-two".