20224201555 has 16 divisors (see below), whose sum is σ = 25924048704. Its totient is φ = 15092869120.

The previous prime is 20224201523. The next prime is 20224201583. The reversal of 20224201555 is 55510242202.

It is not a de Polignac number, because 20224201555 - 2⁵ = 20224201523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043191 + ... + 1062400.

It is an arithmetic number, because the mean of its divisors is an integer number (1620253044).

Almost surely, 2^20224201555 is an apocalyptic number.

20224201555 is a deficient number, since it is larger than the sum of its proper divisors (5699847149).

20224201555 is a wasteful number, since it uses less digits than its factorization.

20224201555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105726.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 20224201555 its reverse (55510242202), we get a palindrome (75734443757).

The spelling of 20224201555 in words is "twenty billion, two hundred twenty-four million, two hundred one thousand, five hundred fifty-five".