22020222091061 has 2 divisors, whose sum is σ = 22020222091062. Its totient is φ = 22020222091060.

The previous prime is 22020222090931. The next prime is 22020222091103. The reversal of 22020222091061 is 16019022202022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18430656092836 + 3589565998225 = 4293094^2 + 1894615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22020222091061 is a prime.

It is a super-2 number, since 2×22020222091061² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22020222081061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010111045530 + 11010111045531.

It is an arithmetic number, because the mean of its divisors is an integer number (11010111045531).

Almost surely, 2^{22020222091061} is an apocalyptic number.

It is an amenable number.

22020222091061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020222091061 is an equidigital number, since it uses as much as digits as its factorization.

22020222091061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 22020222091061 its reverse (16019022202022), we get a palindrome (38039244293083).

The spelling of 22020222091061 in words is "twenty-two trillion, twenty billion, two hundred twenty-two million, ninety-one thousand, sixty-one".