20045222351 has 16 divisors (see below), whose sum is σ = 25333801728. Its totient is φ = 15405681600.

The previous prime is 20045222303. The next prime is 20045222377. The reversal of 20045222351 is 15322254002.

It is a cyclic number.

It is not a de Polignac number, because 20045222351 - 2¹⁴ = 20045205967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20045222351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045222251) by changing a digit.

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, 1777445 + ... + 1788686.

It is an arithmetic number, because the mean of its divisors is an integer number (1583362608).

Almost surely, 2^20045222351 is an apocalyptic number.

20045222351 is a deficient number, since it is larger than the sum of its proper divisors (5288579377).

20045222351 is a wasteful number, since it uses less digits than its factorization.

20045222351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566222.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 20045222351 its reverse (15322254002), we get a palindrome (35367476353).

The spelling of 20045222351 in words is "twenty billion, forty-five million, two hundred twenty-two thousand, three hundred fifty-one".