22102021061 has 2 divisors, whose sum is σ = 22102021062. Its totient is φ = 22102021060.

The previous prime is 22102021057. The next prime is 22102021121. The reversal of 22102021061 is 16012020122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12425560900 + 9676460161 = 111470^2 + 98369^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102021061 - 2² = 22102021057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22102021021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051010530 + 11051010531.

It is an arithmetic number, because the mean of its divisors is an integer number (11051010531).

Almost surely, 2^22102021061 is an apocalyptic number.

It is an amenable number.

22102021061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102021061 is an equidigital number, since it uses as much as digits as its factorization.

22102021061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22102021061 its reverse (16012020122), we get a palindrome (38114041183).

The spelling of 22102021061 in words is "twenty-two billion, one hundred two million, twenty-one thousand, sixty-one".