1222556260065 has 32 divisors (see below), whose sum is σ = 2235573824256. Its totient is φ = 558872267520.

The previous prime is 1222556260039. The next prime is 1222556260067. The reversal of 1222556260065 is 5600626552221.

It is not a de Polignac number, because 1222556260065 - 2⁸ = 1222556259809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222556259999 and 1222556260026.

It is not an unprimeable number, because it can be changed into a prime (1222556260067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9091459 + ... + 9224951.

It is an arithmetic number, because the mean of its divisors is an integer number (69861682008).

Almost surely, 2^{1222556260065} is an apocalyptic number.

1222556260065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222556260065 is a deficient number, since it is larger than the sum of its proper divisors (1013017564191).

1222556260065 is a wasteful number, since it uses less digits than its factorization.

1222556260065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220729.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 1222556260065 in words is "one trillion, two hundred twenty-two billion, five hundred fifty-six million, two hundred sixty thousand, sixty-five".