1225208026 has 8 divisors (see below), whose sum is σ = 2100356640. Its totient is φ = 525089148.

The previous prime is 1225207993. The next prime is 1225208099. The reversal of 1225208026 is 6208025221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1225208026² = 3002269413949633352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225207985 and 1225208003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43757416 + ... + 43757443.

It is an arithmetic number, because the mean of its divisors is an integer number (262544580).

Almost surely, 2^1225208026 is an apocalyptic number.

1225208026 is a deficient number, since it is larger than the sum of its proper divisors (875148614).

1225208026 is an equidigital number, since it uses as much as digits as its factorization.

1225208026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87514868.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1225208026 is about 35002.9716738451. The cubic root of 1225208026 is about 1070.0480445426.

The spelling of 1225208026 in words is "one billion, two hundred twenty-five million, two hundred eight thousand, twenty-six".