222421331123420 has 192 divisors, whose sum is σ = 588077085689856. Its totient is φ = 69482790558720.

The previous prime is 222421331123317. The next prime is 222421331123449. The reversal of 222421331123420 is 24321133124222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43259264 + ... + 48126983.

It is an arithmetic number, because the mean of its divisors is an integer number (3062901487968).

Almost surely, 2^{222421331123420} is an apocalyptic number.

222421331123420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222421331123420 is an abundant number, since it is smaller than the sum of its proper divisors (365655754566436).

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

222421331123420 is a wasteful number, since it uses less digits than its factorization.

222421331123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91386340 (or 91386338 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 222421331123420 its reverse (24321133124222), we get a palindrome (246742464247642).

The spelling of 222421331123420 in words is "two hundred twenty-two trillion, four hundred twenty-one billion, three hundred thirty-one million, one hundred twenty-three thousand, four hundred twenty".