1220221330023 has 16 divisors (see below), whose sum is σ = 1691784465120. Its totient is φ = 781360226304.

The previous prime is 1220221329991. The next prime is 1220221330043. The reversal of 1220221330023 is 3200331220221.

It is a happy number.

It is not a de Polignac number, because 1220221330023 - 2⁵ = 1220221329991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220221330043) 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, 36318786 + ... + 36352367.

It is an arithmetic number, because the mean of its divisors is an integer number (105736529070).

Almost surely, 2^{1220221330023} is an apocalyptic number.

1220221330023 is a deficient number, since it is larger than the sum of its proper divisors (471563135097).

1220221330023 is a wasteful number, since it uses less digits than its factorization.

1220221330023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72671378.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220221330023 its reverse (3200331220221), we get a palindrome (4420552550244).

The spelling of 1220221330023 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, three hundred thirty thousand, twenty-three".