1223210123201 has 16 divisors (see below), whose sum is σ = 1379266914816. Its totient is φ = 1074723600000.

The previous prime is 1223210123197. The next prime is 1223210123207. The reversal of 1223210123201 is 1023210123221.

It is a cyclic number.

It is not a de Polignac number, because 1223210123201 - 2² = 1223210123197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223210123207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2097350 + ... + 2616351.

It is an arithmetic number, because the mean of its divisors is an integer number (86204182176).

Almost surely, 2^{1223210123201} is an apocalyptic number.

1223210123201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223210123201 is a deficient number, since it is larger than the sum of its proper divisors (156056791615).

1223210123201 is a wasteful number, since it uses less digits than its factorization.

1223210123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714504.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1223210123201 its sum of digits (20), we get a palindrome (1223210123221).

Adding to 1223210123201 its reverse (1023210123221), we get a palindrome (2246420246422).

The spelling of 1223210123201 in words is "one trillion, two hundred twenty-three billion, two hundred ten million, one hundred twenty-three thousand, two hundred one".