222022123100 has 72 divisors (see below), whose sum is σ = 507785051760. Its totient is φ = 84028561920.

The previous prime is 222022123049. The next prime is 222022123109. The reversal of 222022123100 is 1321220222.

It is a super-2 number, since 2×222022123100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222022123109) 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, 1440992 + ... + 1587608.

Almost surely, 2^222022123100 is an apocalyptic number.

222022123100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222022123100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253892525880).

222022123100 is an abundant number, since it is smaller than the sum of its proper divisors (285762928660).

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

222022123100 is a wasteful number, since it uses less digits than its factorization.

222022123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147447 (or 147440 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 222022123100 its reverse (1321220222), we get a palindrome (223343343322).

The spelling of 222022123100 in words is "two hundred twenty-two billion, twenty-two million, one hundred twenty-three thousand, one hundred".