1222000245 has 24 divisors (see below), whose sum is σ = 2119433472. Its totient is φ = 651333600.

The previous prime is 1222000229. The next prime is 1222000261. The reversal of 1222000245 is 5420002221.

It is an interprime number because it is at equal distance from previous prime (1222000229) and next prime (1222000261).

It is not a de Polignac number, because 1222000245 - 2⁴ = 1222000229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74980 + ... + 89810.

It is an arithmetic number, because the mean of its divisors is an integer number (88309728).

Almost surely, 2^1222000245 is an apocalyptic number.

1222000245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222000245 is a deficient number, since it is larger than the sum of its proper divisors (897433227).

1222000245 is a wasteful number, since it uses less digits than its factorization.

1222000245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16673 (or 16670 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1222000245 is about 34957.1200901905. The cubic root of 1222000245 is about 1069.1133788469.

Adding to 1222000245 its reverse (5420002221), we get a palindrome (6642002466).

The spelling of 1222000245 in words is "one billion, two hundred twenty-two million, two hundred forty-five", and thus it is an aban number.