22203121315541 has 2 divisors, whose sum is σ = 22203121315542. Its totient is φ = 22203121315540.

The previous prime is 22203121315517. The next prime is 22203121315549. The reversal of 22203121315541 is 14551312130222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20823250562500 + 1379870753041 = 4563250^2 + 1174679^2 .

It is a cyclic number.

It is not a de Polignac number, because 22203121315541 - 2¹⁸ = 22203121053397 is a prime.

It is a super-2 number, since 2×22203121315541² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22203121315498 and 22203121315507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22203121315549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101560657770 + 11101560657771.

It is an arithmetic number, because the mean of its divisors is an integer number (11101560657771).

Almost surely, 2^{22203121315541} is an apocalyptic number.

It is an amenable number.

22203121315541 is a deficient number, since it is larger than the sum of its proper divisors (1).

22203121315541 is an equidigital number, since it uses as much as digits as its factorization.

22203121315541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 22203121315541 its reverse (14551312130222), we get a palindrome (36754433445763).

The spelling of 22203121315541 in words is "twenty-two trillion, two hundred three billion, one hundred twenty-one million, three hundred fifteen thousand, five hundred forty-one".