22555661533201 has 2 divisors, whose sum is σ = 22555661533202. Its totient is φ = 22555661533200.

The previous prime is 22555661533127. The next prime is 22555661533211. The reversal of 22555661533201 is 10233516655522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21151021752576 + 1404639780625 = 4599024^2 + 1185175^2 .

It is a cyclic number.

It is not a de Polignac number, because 22555661533201 - 2³¹ = 22553514049553 is a prime.

It is not a weakly prime, because it can be changed into another prime (22555661533211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277830766600 + 11277830766601.

It is an arithmetic number, because the mean of its divisors is an integer number (11277830766601).

Almost surely, 2^{22555661533201} is an apocalyptic number.

It is an amenable number.

22555661533201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22555661533201 is an equidigital number, since it uses as much as digits as its factorization.

22555661533201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 22555661533201 in words is "twenty-two trillion, five hundred fifty-five billion, six hundred sixty-one million, five hundred thirty-three thousand, two hundred one".