1223200120203 has 24 divisors (see below), whose sum is σ = 1802856642912. Its totient is φ = 798891545088.

The previous prime is 1223200120169. The next prime is 1223200120249. The reversal of 1223200120203 is 3020210023221.

1223200120203 is a `hidden beast` number, since 1 + 22 + 320 + 0 + 120 + 203 = 666.

It is not a de Polignac number, because 1223200120203 - 2¹² = 1223200116107 is a prime.

It is a super-2 number, since 2×1223200120203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223200120283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1584151 + ... + 2226192.

It is an arithmetic number, because the mean of its divisors is an integer number (75119026788).

Almost surely, 2^{1223200120203} is an apocalyptic number.

1223200120203 is a deficient number, since it is larger than the sum of its proper divisors (579656522709).

1223200120203 is a wasteful number, since it uses less digits than its factorization.

1223200120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811075 (or 3811072 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1223200120203 its reverse (3020210023221), we get a palindrome (4243410143424).

The spelling of 1223200120203 in words is "one trillion, two hundred twenty-three billion, two hundred million, one hundred twenty thousand, two hundred three".