22221221201011 has 16 divisors (see below), whose sum is σ = 26899263323136. Its totient is φ = 17919884428416.

The previous prime is 22221221200987. The next prime is 22221221201029. The reversal of 22221221201011 is 11010212212222.

It is a cyclic number.

It is not a de Polignac number, because 22221221201011 - 2⁴¹ = 20022197945459 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 22221221201011.

It is not an unprimeable number, because it can be changed into a prime (22221221201071) 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, 33413581 + ... + 34072126.

It is an arithmetic number, because the mean of its divisors is an integer number (1681203957696).

Almost surely, 2^{22221221201011} is an apocalyptic number.

22221221201011 is a deficient number, since it is larger than the sum of its proper divisors (4678042122125).

22221221201011 is a wasteful number, since it uses less digits than its factorization.

22221221201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67488498.

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

Adding to 22221221201011 its reverse (11010212212222), we get a palindrome (33231433413233).

The spelling of 22221221201011 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred one thousand, eleven".