22654442521261 has 2 divisors, whose sum is σ = 22654442521262. Its totient is φ = 22654442521260.

The previous prime is 22654442521189. The next prime is 22654442521283. The reversal of 22654442521261 is 16212524445622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20751714714025 + 1902727807236 = 4555405^2 + 1379394^2 .

It is a cyclic number.

It is not a de Polignac number, because 22654442521261 - 2¹⁷ = 22654442390189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22654442521961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11327221260630 + 11327221260631.

It is an arithmetic number, because the mean of its divisors is an integer number (11327221260631).

Almost surely, 2^{22654442521261} is an apocalyptic number.

It is an amenable number.

22654442521261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22654442521261 is an equidigital number, since it uses as much as digits as its factorization.

22654442521261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1843200, while the sum is 46.

Adding to 22654442521261 its reverse (16212524445622), we get a palindrome (38866966966883).

The spelling of 22654442521261 in words is "twenty-two trillion, six hundred fifty-four billion, four hundred forty-two million, five hundred twenty-one thousand, two hundred sixty-one".