221111020222 has 16 divisors (see below), whose sum is σ = 334971220752. Its totient is φ = 109454083200.

The previous prime is 221111020213. The next prime is 221111020331. The reversal of 221111020222 is 222020111122.

It is a happy number.

It is a super-2 number, since 2×221111020222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221111020196 and 221111020205.

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, 5205193 + ... + 5247499.

It is an arithmetic number, because the mean of its divisors is an integer number (20935701297).

Almost surely, 2^221111020222 is an apocalyptic number.

221111020222 is a deficient number, since it is larger than the sum of its proper divisors (113860200530).

221111020222 is a wasteful number, since it uses less digits than its factorization.

221111020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68283.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221111020222 its reverse (222020111122), we get a palindrome (443131131344).

The spelling of 221111020222 in words is "two hundred twenty-one billion, one hundred eleven million, twenty thousand, two hundred twenty-two".