223013021121021 has 16 divisors (see below), whose sum is σ = 299770473719808. Its totient is φ = 147466070740800.

The previous prime is 223013021121017. The next prime is 223013021121133. The reversal of 223013021121021 is 120121120310322.

It is not a de Polignac number, because 223013021121021 - 2² = 223013021121017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223013021123021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75138810 + ... + 78050411.

It is an arithmetic number, because the mean of its divisors is an integer number (18735654607488).

Almost surely, 2^{223013021121021} is an apocalyptic number.

It is an amenable number.

223013021121021 is a deficient number, since it is larger than the sum of its proper divisors (76757452598787).

223013021121021 is a wasteful number, since it uses less digits than its factorization.

223013021121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153193172.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 223013021121021 its reverse (120121120310322), we get a palindrome (343134141431343).

The spelling of 223013021121021 in words is "two hundred twenty-three trillion, thirteen billion, twenty-one million, one hundred twenty-one thousand, twenty-one".