222102434420 has 12 divisors (see below), whose sum is σ = 466415112324. Its totient is φ = 88840973760.

The previous prime is 222102434383. The next prime is 222102434423. The reversal of 222102434420 is 24434201222.

It can be written as a sum of positive squares in 2 ways, for example, as 27326734864 + 194775699556 = 165308^2 + 441334^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222102434420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102434423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552560841 + ... + 5552560880.

It is an arithmetic number, because the mean of its divisors is an integer number (38867926027).

Almost surely, 2^222102434420 is an apocalyptic number.

222102434420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102434420 is an abundant number, since it is smaller than the sum of its proper divisors (244312677904).

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

222102434420 is a wasteful number, since it uses less digits than its factorization.

222102434420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105121730 (or 11105121728 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 222102434420 its reverse (24434201222), we get a palindrome (246536635642).

The spelling of 222102434420 in words is "two hundred twenty-two billion, one hundred two million, four hundred thirty-four thousand, four hundred twenty".