221220100010222 has 32 divisors (see below), whose sum is σ = 342197241546240. Its totient is φ = 107213465288160.

The previous prime is 221220100010209. The next prime is 221220100010233. The reversal of 221220100010222 is 222010001022122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221220100010222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17998298 + ... + 27683549.

It is an arithmetic number, because the mean of its divisors is an integer number (10693663798320).

Almost surely, 2^{221220100010222} is an apocalyptic number.

221220100010222 is a deficient number, since it is larger than the sum of its proper divisors (120977141536018).

221220100010222 is a wasteful number, since it uses less digits than its factorization.

221220100010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45682496.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221220100010222 its reverse (222010001022122), we get a palindrome (443230101032344).

The spelling of 221220100010222 in words is "two hundred twenty-one trillion, two hundred twenty billion, one hundred million, ten thousand, two hundred twenty-two".