20022551116611 has 16 divisors (see below), whose sum is σ = 26783428888320. Its totient is φ = 13305023111520.

The previous prime is 20022551116597. The next prime is 20022551116627. The reversal of 20022551116611 is 11661115522002.

It is a happy number.

It is not a de Polignac number, because 20022551116611 - 2²⁹ = 20022014245699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20022551116651) 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, 30476100 + ... + 31126158.

It is an arithmetic number, because the mean of its divisors is an integer number (1673964305520).

Almost surely, 2^{20022551116611} is an apocalyptic number.

20022551116611 is a deficient number, since it is larger than the sum of its proper divisors (6760877771709).

20022551116611 is a wasteful number, since it uses less digits than its factorization.

20022551116611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683386.

The product of its (nonzero) digits is 7200, while the sum is 33.

Adding to 20022551116611 its reverse (11661115522002), we get a palindrome (31683666638613).

The spelling of 20022551116611 in words is "twenty trillion, twenty-two billion, five hundred fifty-one million, one hundred sixteen thousand, six hundred eleven".