1225224708228 has 36 divisors (see below), whose sum is σ = 3100684624128. Its totient is φ = 407934983280.

The previous prime is 1225224708209. The next prime is 1225224708277. The reversal of 1225224708228 is 8228074225221.

1225224708228 is a `hidden beast` number, since 1 + 2 + 2 + 522 + 47 + 0 + 82 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 19687368 + ... + 19749503.

It is an arithmetic number, because the mean of its divisors is an integer number (86130128448).

Almost surely, 2^{1225224708228} is an apocalyptic number.

1225224708228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1225224708228 is an abundant number, since it is smaller than the sum of its proper divisors (1875459915900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225224708228 is a wasteful number, since it uses less digits than its factorization.

1225224708228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39437744 (or 39437739 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 45.

The spelling of 1225224708228 in words is "one trillion, two hundred twenty-five billion, two hundred twenty-four million, seven hundred eight thousand, two hundred twenty-eight".