22220121102 has 48 divisors (see below), whose sum is σ = 47099646720. Its totient is φ = 6987358224.

The previous prime is 22220121101. The next prime is 22220121127. The reversal of 22220121102 is 20112102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220121101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 496213 + ... + 539135.

It is an arithmetic number, because the mean of its divisors is an integer number (981242640).

Almost surely, 2^22220121102 is an apocalyptic number.

22220121102 is an abundant number, since it is smaller than the sum of its proper divisors (24879525618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22220121102 is a wasteful number, since it uses less digits than its factorization.

22220121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43205 (or 43186 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22220121102 its reverse (20112102222), we get a palindrome (42332223324).

The spelling of 22220121102 in words is "twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred two".