22211323061 has 2 divisors, whose sum is σ = 22211323062. Its totient is φ = 22211323060.

The previous prime is 22211323037. The next prime is 22211323063. The reversal of 22211323061 is 16032311222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15383440900 + 6827882161 = 124030^2 + 82631^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211323061 - 2⁶ = 22211322997 is a prime.

It is a super-2 number, since 2×22211323061² (a number of 21 digits) contains 22 as substring.

Together with 22211323063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211323063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105661530 + 11105661531.

It is an arithmetic number, because the mean of its divisors is an integer number (11105661531).

Almost surely, 2^22211323061 is an apocalyptic number.

It is an amenable number.

22211323061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211323061 is an equidigital number, since it uses as much as digits as its factorization.

22211323061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 22211323061 its reverse (16032311222), we get a palindrome (38243634283).

The spelling of 22211323061 in words is "twenty-two billion, two hundred eleven million, three hundred twenty-three thousand, sixty-one".