2221220211101 has 16 divisors (see below), whose sum is σ = 2325374797824. Its totient is φ = 2117702031984.

The previous prime is 2221220211079. The next prime is 2221220211113. The reversal of 2221220211101 is 1011120221222.

It is a cyclic number.

It is not a de Polignac number, because 2221220211101 - 2⁶ = 2221220211037 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 2221220211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221220211121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21073136 + ... + 21178278.

It is an arithmetic number, because the mean of its divisors is an integer number (145335924864).

Almost surely, 2^{2221220211101} is an apocalyptic number.

It is an amenable number.

2221220211101 is a deficient number, since it is larger than the sum of its proper divisors (104154586723).

2221220211101 is a wasteful number, since it uses less digits than its factorization.

2221220211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108160.

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

Adding to 2221220211101 its reverse (1011120221222), we get a palindrome (3232340432323).

The spelling of 2221220211101 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, two hundred eleven thousand, one hundred one".