222211000000221 has 16 divisors (see below), whose sum is σ = 296917470742464. Its totient is φ = 147822601601024.

The previous prime is 222211000000181. The next prime is 222211000000247. The reversal of 222211000000221 is 122000000112222.

It is a cyclic number.

It is not a de Polignac number, because 222211000000221 - 2¹³ = 222210999992029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222211000000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211000000321) 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, 329454301 + ... + 330128093.

It is an arithmetic number, because the mean of its divisors is an integer number (18557341921404).

Almost surely, 2^{222211000000221} is an apocalyptic number.

It is an amenable number.

222211000000221 is a deficient number, since it is larger than the sum of its proper divisors (74706470742243).

222211000000221 is a wasteful number, since it uses less digits than its factorization.

222211000000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909660.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222211000000221 its reverse (122000000112222), we get a palindrome (344211000112443).

The spelling of 222211000000221 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-one", and thus it is an aban number.