220202223121 has 4 divisors (see below), whose sum is σ = 220234222192. Its totient is φ = 220170224052.

The previous prime is 220202223107. The next prime is 220202223193. The reversal of 220202223121 is 121322202022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220202223121 - 2¹⁹ = 220201698833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220202223421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15989211 + ... + 16002976.

It is an arithmetic number, because the mean of its divisors is an integer number (55058555548).

Almost surely, 2^220202223121 is an apocalyptic number.

It is an amenable number.

220202223121 is a deficient number, since it is larger than the sum of its proper divisors (31999071).

220202223121 is an equidigital number, since it uses as much as digits as its factorization.

220202223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31999070.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 220202223121 its reverse (121322202022), we get a palindrome (341524425143).

The spelling of 220202223121 in words is "two hundred twenty billion, two hundred two million, two hundred twenty-three thousand, one hundred twenty-one".