220221100202011 has 4 divisors (see below), whose sum is σ = 220229243597032. Its totient is φ = 220212956806992.

The previous prime is 220221100201951. The next prime is 220221100202069. The reversal of 220221100202011 is 110202001122022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220221100202011 - 2¹³ = 220221100193819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220221100202711) 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, 4071656946 + ... + 4071711031.

It is an arithmetic number, because the mean of its divisors is an integer number (55057310899258).

Almost surely, 2^{220221100202011} is an apocalyptic number.

220221100202011 is a deficient number, since it is larger than the sum of its proper divisors (8143395021).

220221100202011 is an equidigital number, since it uses as much as digits as its factorization.

220221100202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8143395020.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220221100202011 its reverse (110202001122022), we get a palindrome (330423101324033).

The spelling of 220221100202011 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred million, two hundred two thousand, eleven".