22220021110061 has 2 divisors, whose sum is σ = 22220021110062. Its totient is φ = 22220021110060.

The previous prime is 22220021110043. The next prime is 22220021110121. The reversal of 22220021110061 is 16001112002222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18739427156836 + 3480593953225 = 4328906^2 + 1865635^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220021110061 - 2²⁶ = 22219954001197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220021112061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110010555030 + 11110010555031.

It is an arithmetic number, because the mean of its divisors is an integer number (11110010555031).

Almost surely, 2^{22220021110061} is an apocalyptic number.

It is an amenable number.

22220021110061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220021110061 is an equidigital number, since it uses as much as digits as its factorization.

22220021110061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22220021110061 its reverse (16001112002222), we get a palindrome (38221133112283).

The spelling of 22220021110061 in words is "twenty-two trillion, two hundred twenty billion, twenty-one million, one hundred ten thousand, sixty-one".