232221021423420 has 48 divisors (see below), whose sum is σ = 650283630958080. Its totient is φ = 61919437048896.

The previous prime is 232221021423341. The next prime is 232221021423439. The reversal of 232221021423420 is 24324120122232.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192163392 + ... + 193368071.

It is an arithmetic number, because the mean of its divisors is an integer number (13547575644960).

Almost surely, 2^{232221021423420} is an apocalyptic number.

232221021423420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232221021423420 is an abundant number, since it is smaller than the sum of its proper divisors (418062609534660).

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

232221021423420 is a wasteful number, since it uses less digits than its factorization.

232221021423420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385541514 (or 385541512 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 232221021423420 its reverse (24324120122232), we get a palindrome (256545141545652).

The spelling of 232221021423420 in words is "two hundred thirty-two trillion, two hundred twenty-one billion, twenty-one million, four hundred twenty-three thousand, four hundred twenty".