22211522277409 has 2 divisors, whose sum is σ = 22211522277410. Its totient is φ = 22211522277408.

The previous prime is 22211522277397. The next prime is 22211522277443. The reversal of 22211522277409 is 90477222511222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13370248206225 + 8841274071184 = 3656535^2 + 2973428^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211522277409 - 2³⁷ = 22074083323937 is a prime.

It is not a weakly prime, because it can be changed into another prime (22211522277479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105761138704 + 11105761138705.

It is an arithmetic number, because the mean of its divisors is an integer number (11105761138705).

Almost surely, 2^{22211522277409} is an apocalyptic number.

It is an amenable number.

22211522277409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211522277409 is an equidigital number, since it uses as much as digits as its factorization.

22211522277409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 22211522277409 in words is "twenty-two trillion, two hundred eleven billion, five hundred twenty-two million, two hundred seventy-seven thousand, four hundred nine".