1222204113123 has 32 divisors (see below), whose sum is σ = 1941518487552. Its totient is φ = 669181392000.

The previous prime is 1222204113107. The next prime is 1222204113127. The reversal of 1222204113123 is 3213114022221.

It is not a de Polignac number, because 1222204113123 - 2⁴ = 1222204113107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222204113093 and 1222204113102.

It is not an unprimeable number, because it can be changed into a prime (1222204113127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9228436 + ... + 9359937.

It is an arithmetic number, because the mean of its divisors is an integer number (60672452736).

Almost surely, 2^{1222204113123} is an apocalyptic number.

1222204113123 is a deficient number, since it is larger than the sum of its proper divisors (719314374429).

1222204113123 is a wasteful number, since it uses less digits than its factorization.

1222204113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18588515.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1222204113123 its reverse (3213114022221), we get a palindrome (4435318135344).

The spelling of 1222204113123 in words is "one trillion, two hundred twenty-two billion, two hundred four million, one hundred thirteen thousand, one hundred twenty-three".