20022232505 has 16 divisors (see below), whose sum is σ = 26240670144. Its totient is φ = 14545097280.

The previous prime is 20022232493. The next prime is 20022232537. The reversal of 20022232505 is 50523222002.

It is a happy number.

It is not a de Polignac number, because 20022232505 - 2¹² = 20022228409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157574 + ... + 254703.

It is an arithmetic number, because the mean of its divisors is an integer number (1640041884).

Almost surely, 2^20022232505 is an apocalyptic number.

It is an amenable number.

20022232505 is a deficient number, since it is larger than the sum of its proper divisors (6218437639).

20022232505 is a wasteful number, since it uses less digits than its factorization.

20022232505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413176.

The product of its (nonzero) digits is 2400, while the sum is 23.

Adding to 20022232505 its reverse (50523222002), we get a palindrome (70545454507).

The spelling of 20022232505 in words is "twenty billion, twenty-two million, two hundred thirty-two thousand, five hundred five".