1223221201023 has 8 divisors (see below), whose sum is σ = 1632531347200. Its totient is φ = 814695927768.

The previous prime is 1223221201019. The next prime is 1223221201031. The reversal of 1223221201023 is 3201021223221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223221201023 - 2² = 1223221201019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223221201043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196214593 + ... + 196220826.

It is an arithmetic number, because the mean of its divisors is an integer number (204066418400).

Almost surely, 2^{1223221201023} is an apocalyptic number.

1223221201023 is a deficient number, since it is larger than the sum of its proper divisors (409310146177).

1223221201023 is a wasteful number, since it uses less digits than its factorization.

1223221201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392436461.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1223221201023 its reverse (3201021223221), we get a palindrome (4424242424244).

The spelling of 1223221201023 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred one thousand, twenty-three".