20222351553 has 16 divisors (see below), whose sum is σ = 27541794816. Its totient is φ = 13192341840.

The previous prime is 20222351509. The next prime is 20222351557. The reversal of 20222351553 is 35515322202.

It is not a de Polignac number, because 20222351553 - 2⁸ = 20222351297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20222351553.

It is not an unprimeable number, because it can be changed into a prime (20222351557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120600 + ... + 1138502.

It is an arithmetic number, because the mean of its divisors is an integer number (1721362176).

Almost surely, 2^20222351553 is an apocalyptic number.

It is an amenable number.

20222351553 is a deficient number, since it is larger than the sum of its proper divisors (7319443263).

20222351553 is a wasteful number, since it uses less digits than its factorization.

20222351553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25964.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 20222351553 its reverse (35515322202), we get a palindrome (55737673755).

The spelling of 20222351553 in words is "twenty billion, two hundred twenty-two million, three hundred fifty-one thousand, five hundred fifty-three".