1223222213201 has 16 divisors (see below), whose sum is σ = 1318963461120. Its totient is φ = 1131106690560.

The previous prime is 1223222213131. The next prime is 1223222213203. The reversal of 1223222213201 is 1023122223221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1223222213201 - 2²⁶ = 1223155104337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1223222213203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220616 + ... + 1579593.

It is an arithmetic number, because the mean of its divisors is an integer number (82435216320).

Almost surely, 2^{1223222213201} is an apocalyptic number.

It is an amenable number.

1223222213201 is a deficient number, since it is larger than the sum of its proper divisors (95741247919).

1223222213201 is a wasteful number, since it uses less digits than its factorization.

1223222213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801216.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1223222213201 its reverse (1023122223221), we get a palindrome (2246344436422).

The spelling of 1223222213201 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-two million, two hundred thirteen thousand, two hundred one".