222231423120420 has 48 divisors (see below), whose sum is σ = 711140553986688. Its totient is φ = 50795753856000.

The previous prime is 222231423120391. The next prime is 222231423120451. The reversal of 222231423120420 is 24021324132222.

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

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, 264561217581 + ... + 264561218420.

It is an arithmetic number, because the mean of its divisors is an integer number (14815428208056).

Almost surely, 2^{222231423120420} is an apocalyptic number.

222231423120420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222231423120420 is an abundant number, since it is smaller than the sum of its proper divisors (488909130866268).

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

222231423120420 is a wasteful number, since it uses less digits than its factorization.

222231423120420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529122436020 (or 529122436018 counting only the distinct ones).

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

Adding to 222231423120420 its reverse (24021324132222), we get a palindrome (246252747252642).

The spelling of 222231423120420 in words is "two hundred twenty-two trillion, two hundred thirty-one billion, four hundred twenty-three million, one hundred twenty thousand, four hundred twenty".