22021110112109 has 2 divisors, whose sum is σ = 22021110112110. Its totient is φ = 22021110112108.

The previous prime is 22021110112097. The next prime is 22021110112213. The reversal of 22021110112109 is 90121101112022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12308849509609 + 9712260602500 = 3508397^2 + 3116450^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021110112109 - 2¹² = 22021110108013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021110162109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010555056054 + 11010555056055.

It is an arithmetic number, because the mean of its divisors is an integer number (11010555056055).

Almost surely, 2^{22021110112109} is an apocalyptic number.

It is an amenable number.

22021110112109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021110112109 is an equidigital number, since it uses as much as digits as its factorization.

22021110112109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 22021110112109 in words is "twenty-two trillion, twenty-one billion, one hundred ten million, one hundred twelve thousand, one hundred nine".