222221021134420 has 96 divisors (see below), whose sum is σ = 581833918955520. Its totient is φ = 69261447066240.

The previous prime is 222221021134417. The next prime is 222221021134423. The reversal of 222221021134420 is 24431120122222.

It is an interprime number because it is at equal distance from previous prime (222221021134417) and next prime (222221021134423).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222221021134423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45443277 + ... + 50095243.

It is an arithmetic number, because the mean of its divisors is an integer number (6060769989120).

Almost surely, 2^{222221021134420} is an apocalyptic number.

222221021134420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221021134420 is an abundant number, since it is smaller than the sum of its proper divisors (359612897821100).

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

222221021134420 is a wasteful number, since it uses less digits than its factorization.

222221021134420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683013 (or 4683011 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 222221021134420 its reverse (24431120122222), we get a palindrome (246652141256642).

The spelling of 222221021134420 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty-one million, one hundred thirty-four thousand, four hundred twenty".