1223625228111 has 48 divisors (see below), whose sum is σ = 2145831512160. Its totient is φ = 684545558400.

The previous prime is 1223625228061. The next prime is 1223625228127. The reversal of 1223625228111 is 1118225263221.

1223625228111 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 625 + 2 + 28 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 1223625228111 - 2⁷ = 1223625227983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223625228191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14362950 + ... + 14447891.

It is an arithmetic number, because the mean of its divisors is an integer number (44704823170).

Almost surely, 2^{1223625228111} is an apocalyptic number.

1223625228111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1223625228111 is a deficient number, since it is larger than the sum of its proper divisors (922206284049).

1223625228111 is a wasteful number, since it uses less digits than its factorization.

1223625228111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28810885 (or 28810868 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The spelling of 1223625228111 in words is "one trillion, two hundred twenty-three billion, six hundred twenty-five million, two hundred twenty-eight thousand, one hundred eleven".