220002021101 has 4 divisors (see below), whose sum is σ = 220047136092. Its totient is φ = 219956906112.

The previous prime is 220002021091. The next prime is 220002021157. The reversal of 220002021101 is 101120200022.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 126931875625 + 93070145476 = 356275^2 + 305074^2 .

It is a cyclic number.

It is not a de Polignac number, because 220002021101 - 2²⁶ = 219934912237 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 (220002021181) 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, 22550180 + ... + 22559933.

It is an arithmetic number, because the mean of its divisors is an integer number (55011784023).

Almost surely, 2^220002021101 is an apocalyptic number.

It is an amenable number.

220002021101 is a deficient number, since it is larger than the sum of its proper divisors (45114991).

220002021101 is an equidigital number, since it uses as much as digits as its factorization.

220002021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45114990.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220002021101 its reverse (101120200022), we get a palindrome (321122221123).

The spelling of 220002021101 in words is "two hundred twenty billion, two million, twenty-one thousand, one hundred one".