1222491080385 has 12 divisors (see below), whose sum is σ = 2118984539412. Its totient is φ = 651995242848.

The previous prime is 1222491080339. The next prime is 1222491080429. The reversal of 1222491080385 is 5830801942221.

1222491080385 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 491 + 0 + 80 + 3 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 161160496704 + 1061330583681 = 401448^2 + 1030209^2 .

It is not a de Polignac number, because 1222491080385 - 2¹³ = 1222491072193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 27166468453 = 1222491080385 / (1 + 2 + 2 + 2 + 4 + 9 + 1 + 0 + 8 + 0 + 3 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1222491080385.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13583234182 + ... + 13583234271.

It is an arithmetic number, because the mean of its divisors is an integer number (176582044951).

Almost surely, 2^{1222491080385} is an apocalyptic number.

1222491080385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222491080385 is a deficient number, since it is larger than the sum of its proper divisors (896493459027).

1222491080385 is a wasteful number, since it uses less digits than its factorization.

1222491080385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27166468464 (or 27166468461 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 1222491080385 in words is "one trillion, two hundred twenty-two billion, four hundred ninety-one million, eighty thousand, three hundred eighty-five".