22020053542649 has 2 divisors, whose sum is σ = 22020053542650. Its totient is φ = 22020053542648.

The previous prime is 22020053542631. The next prime is 22020053542661. The reversal of 22020053542649 is 94624535002022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13195470358249 + 8824583184400 = 3632557^2 + 2970620^2 .

It is a cyclic number.

It is not a de Polignac number, because 22020053542649 - 2²⁸ = 22019785107193 is a prime.

It is a super-2 number, since 2×22020053542649² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22020043542649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010026771324 + 11010026771325.

It is an arithmetic number, because the mean of its divisors is an integer number (11010026771325).

Almost surely, 2^{22020053542649} is an apocalyptic number.

It is an amenable number.

22020053542649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22020053542649 is an equidigital number, since it uses as much as digits as its factorization.

22020053542649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 22020053542649 in words is "twenty-two trillion, twenty billion, fifty-three million, five hundred forty-two thousand, six hundred forty-nine".