221020100102222 has 16 divisors (see below), whose sum is σ = 333956933739360. Its totient is φ = 109701155307648.

The previous prime is 221020100102189. The next prime is 221020100102233. The reversal of 221020100102222 is 222201001020122.

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 221020100102222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5131679 + ... + 21641957.

It is an arithmetic number, because the mean of its divisors is an integer number (20872308358710).

Almost surely, 2^{221020100102222} is an apocalyptic number.

221020100102222 is a deficient number, since it is larger than the sum of its proper divisors (112936833637138).

221020100102222 is a wasteful number, since it uses less digits than its factorization.

221020100102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16559275.

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

Adding to 221020100102222 its reverse (222201001020122), we get a palindrome (443221101122344).

The spelling of 221020100102222 in words is "two hundred twenty-one trillion, twenty billion, one hundred million, one hundred two thousand, two hundred twenty-two".