2221021222111 has 8 divisors (see below), whose sum is σ = 2352822910560. Its totient is φ = 2089347687168.

The previous prime is 2221021222103. The next prime is 2221021222153. The reversal of 2221021222111 is 1112221201222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221021222111 - 2³ = 2221021222103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221021222411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32002686 + ... + 32072011.

It is an arithmetic number, because the mean of its divisors is an integer number (294102863820).

Almost surely, 2^{2221021222111} is an apocalyptic number.

2221021222111 is a deficient number, since it is larger than the sum of its proper divisors (131801688449).

2221021222111 is a wasteful number, since it uses less digits than its factorization.

2221021222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64076753.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221021222111 its reverse (1112221201222), we get a palindrome (3333242423333).

The spelling of 2221021222111 in words is "two trillion, two hundred twenty-one billion, twenty-one million, two hundred twenty-two thousand, one hundred eleven".