2220221211101 has 4 divisors (see below), whose sum is σ = 2220230643804. Its totient is φ = 2220211778400.

The previous prime is 2220221211067. The next prime is 2220221211149. The reversal of 2220221211101 is 1011121220222.

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 1120866864100 + 1099354347001 = 1058710^2 + 1048501^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220221211101 - 2¹⁴ = 2220221194717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220221211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220221211151) 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, 4354010 + ... + 4837131.

It is an arithmetic number, because the mean of its divisors is an integer number (555057660951).

Almost surely, 2^{2220221211101} is an apocalyptic number.

It is an amenable number.

2220221211101 is a deficient number, since it is larger than the sum of its proper divisors (9432703).

2220221211101 is an equidigital number, since it uses as much as digits as its factorization.

2220221211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432702.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2220221211101 its reverse (1011121220222), we get a palindrome (3231342431323).

The spelling of 2220221211101 in words is "two trillion, two hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred one".