1223250523221 has 16 divisors (see below), whose sum is σ = 1632368320128. Its totient is φ = 814816723200.

The previous prime is 1223250523163. The next prime is 1223250523223.

It is a happy number.

1223250523221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1223250523221 - 2⁹ = 1223250522709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223250523223) 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, 32508400 + ... + 32546006.

It is an arithmetic number, because the mean of its divisors is an integer number (102023020008).

Almost surely, 2^{1223250523221} is an apocalyptic number.

It is an amenable number.

1223250523221 is a deficient number, since it is larger than the sum of its proper divisors (409117796907).

1223250523221 is a wasteful number, since it uses less digits than its factorization.

1223250523221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46412.

The product of its (nonzero) digits is 14400, while the sum is 30.

It can be divided in two parts, 1223250 and 523221, that added together give a palindrome (1746471).

The spelling of 1223250523221 in words is "one trillion, two hundred twenty-three billion, two hundred fifty million, five hundred twenty-three thousand, two hundred twenty-one".