221222224102 has 32 divisors (see below), whose sum is σ = 383328643104. Its totient is φ = 94632000000.

The previous prime is 221222224081. The next prime is 221222224127. The reversal of 221222224102 is 201422222122.

221222224102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×221222224102⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5880352 + ... + 5917852.

It is an arithmetic number, because the mean of its divisors is an integer number (11979020097).

Almost surely, 2^221222224102 is an apocalyptic number.

221222224102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221222224102 is a deficient number, since it is larger than the sum of its proper divisors (162106419002).

221222224102 is a wasteful number, since it uses less digits than its factorization.

221222224102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53304.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 221222224102 its reverse (201422222122), we get a palindrome (422644446224).

The spelling of 221222224102 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-four thousand, one hundred two".