222210211221011 has 4 divisors (see below), whose sum is σ = 239303304391872. Its totient is φ = 205117118050152.

The previous prime is 222210211220989. The next prime is 222210211221017. The reversal of 222210211221011 is 110122112012222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222210211221011 - 2⁶ = 222210211220947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222210211221017) 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, 8546546585411 + ... + 8546546585436.

It is an arithmetic number, because the mean of its divisors is an integer number (59825826097968).

Almost surely, 2^{222210211221011} is an apocalyptic number.

222210211221011 is a deficient number, since it is larger than the sum of its proper divisors (17093093170861).

222210211221011 is a wasteful number, since it uses less digits than its factorization.

222210211221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17093093170860.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222210211221011 its reverse (110122112012222), we get a palindrome (332332323233233).

The spelling of 222210211221011 in words is "two hundred twenty-two trillion, two hundred ten billion, two hundred eleven million, two hundred twenty-one thousand, eleven".