22211400061 has 2 divisors, whose sum is σ = 22211400062. Its totient is φ = 22211400060.

The previous prime is 22211400049. The next prime is 22211400103. The reversal of 22211400061 is 16000411222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22161979161 + 49420900 = 148869^2 + 7030^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211400061 - 2⁷ = 22211399933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211400161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105700030 + 11105700031.

It is an arithmetic number, because the mean of its divisors is an integer number (11105700031).

Almost surely, 2^22211400061 is an apocalyptic number.

It is an amenable number.

22211400061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211400061 is an equidigital number, since it uses as much as digits as its factorization.

22211400061 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 19.

Adding to 22211400061 its reverse (16000411222), we get a palindrome (38211811283).

The spelling of 22211400061 in words is "twenty-two billion, two hundred eleven million, four hundred thousand, sixty-one".