220111010000221 has 4 divisors (see below), whose sum is σ = 220111321473792. Its totient is φ = 220110698526652.

The previous prime is 220111010000159. The next prime is 220111010000351. The reversal of 220111010000221 is 122000010111022.

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 220111010000221 - 2²¹ = 220111007903069 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 (220111010001221) 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, 154674355 + ... + 156090928.

It is an arithmetic number, because the mean of its divisors is an integer number (55027830368448).

Almost surely, 2^{220111010000221} is an apocalyptic number.

It is an amenable number.

220111010000221 is a deficient number, since it is larger than the sum of its proper divisors (311473571).

220111010000221 is an equidigital number, since it uses as much as digits as its factorization.

220111010000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311473570.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220111010000221 its reverse (122000010111022), we get a palindrome (342111020111243).

The spelling of 220111010000221 in words is "two hundred twenty trillion, one hundred eleven billion, ten million, two hundred twenty-one", and thus it is an aban number.