222211102210221 has 16 divisors (see below), whose sum is σ = 311881687140800. Its totient is φ = 140340948841728.

The previous prime is 222211102210219. The next prime is 222211102210277. The reversal of 222211102210221 is 122012201112222.

It is not a de Polignac number, because 222211102210221 - 2¹ = 222211102210219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211102218221) 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, 37570426 + ... + 43080843.

It is an arithmetic number, because the mean of its divisors is an integer number (19492605446300).

Almost surely, 2^{222211102210221} is an apocalyptic number.

It is an amenable number.

222211102210221 is a deficient number, since it is larger than the sum of its proper divisors (89670584930579).

222211102210221 is a wasteful number, since it uses less digits than its factorization.

222211102210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80699628.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222211102210221 its reverse (122012201112222), we get a palindrome (344223303322443).

The spelling of 222211102210221 in words is "two hundred twenty-two trillion, two hundred eleven billion, one hundred two million, two hundred ten thousand, two hundred twenty-one".