2221110222001 has 16 divisors (see below), whose sum is σ = 2434570145280. Its totient is φ = 2009581902720.

The previous prime is 2221110221987. The next prime is 2221110222031. The reversal of 2221110222001 is 1002220111222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2221110222001 - 2⁷ = 2221110221873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221110222031) 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, 5290315 + ... + 5694703.

It is an arithmetic number, because the mean of its divisors is an integer number (152160634080).

Almost surely, 2^{2221110222001} is an apocalyptic number.

It is an amenable number.

2221110222001 is a deficient number, since it is larger than the sum of its proper divisors (213459923279).

2221110222001 is a wasteful number, since it uses less digits than its factorization.

2221110222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406776.

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

Adding to 2221110222001 its reverse (1002220111222), we get a palindrome (3223330333223).

The spelling of 2221110222001 in words is "two trillion, two hundred twenty-one billion, one hundred ten million, two hundred twenty-two thousand, one".