19022202241 has 81 divisors (see below), whose sum is σ = 25221711177. Its totient is φ = 14299649280.

The previous prime is 19022202179. The next prime is 19022202313. The reversal of 19022202241 is 14220222091.

The square root of 19022202241 is 137921.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1755191025 + 17267011216 = 41895^2 + 131404^2 .

It is not a de Polignac number, because 19022202241 - 2⁹ = 19022201729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19022202341) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 311839351 + ... + 311839411.

Almost surely, 2^19022202241 is an apocalyptic number.

19022202241 is the 137921-st square number.

19022202241 is the 68961-st centered octagonal number.

It is an amenable number.

19022202241 is a deficient number, since it is larger than the sum of its proper divisors (6199508936).

19022202241 is an equidigital number, since it uses as much as digits as its factorization.

19022202241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Multiplying 19022202241 by its sum of digits (25), we get a square (475555056025 = 689605²).

The spelling of 19022202241 in words is "nineteen billion, twenty-two million, two hundred two thousand, two hundred forty-one".