22254034220551 has 32 divisors (see below), whose sum is σ = 27139489648128. Its totient is φ = 17812722769920.

The previous prime is 22254034220549. The next prime is 22254034220591. The reversal of 22254034220551 is 15502243045222.

It is not a de Polignac number, because 22254034220551 - 2¹ = 22254034220549 is a prime.

It is a super-2 number, since 2×22254034220551² (a number of 27 digits) contains 22 as substring.

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 22254034220551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22254034220501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92681416 + ... + 92921218.

It is an arithmetic number, because the mean of its divisors is an integer number (848109051504).

Almost surely, 2^{22254034220551} is an apocalyptic number.

22254034220551 is a deficient number, since it is larger than the sum of its proper divisors (4885455427577).

22254034220551 is a wasteful number, since it uses less digits than its factorization.

22254034220551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245911.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 22254034220551 its reverse (15502243045222), we get a palindrome (37756277265773).

The spelling of 22254034220551 in words is "twenty-two trillion, two hundred fifty-four billion, thirty-four million, two hundred twenty thousand, five hundred fifty-one".