1222636472748 has 48 divisors (see below), whose sum is σ = 3172373585920. Its totient is φ = 407214378000.

The previous prime is 1222636472621. The next prime is 1222636472767. The reversal of 1222636472748 is 8472746362221.

1222636472748 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 6 + 364 + 7 + 274 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1222636472694 and 1222636472703.

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 15 ways as a sum of consecutive naturals, for example, 4465228 + ... + 4731123.

Almost surely, 2^{1222636472748} is an apocalyptic number.

1222636472748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1222636472748 is an abundant number, since it is smaller than the sum of its proper divisors (1949737113172).

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

1222636472748 is a wasteful number, since it uses less digits than its factorization.

1222636472748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9197595 (or 9197587 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 54.

The spelling of 1222636472748 in words is "one trillion, two hundred twenty-two billion, six hundred thirty-six million, four hundred seventy-two thousand, seven hundred forty-eight".