22221222121102 has 16 divisors (see below), whose sum is σ = 35503861770720. Its totient is φ = 10394428661248.

The previous prime is 22221222121093. The next prime is 22221222121121. The reversal of 22221222121102 is 20112122212222.

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 7 ways as a sum of consecutive naturals, for example, 1956776827 + ... + 1956788182.

It is an arithmetic number, because the mean of its divisors is an integer number (2218991360670).

Almost surely, 2^{22221222121102} is an apocalyptic number.

22221222121102 is a deficient number, since it is larger than the sum of its proper divisors (13282639649618).

22221222121102 is a wasteful number, since it uses less digits than its factorization.

22221222121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913565195.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22221222121102 its reverse (20112122212222), we get a palindrome (42333344333324).

The spelling of 22221222121102 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".