222121240424 has 32 divisors (see below), whose sum is σ = 429948768000. Its totient is φ = 107468847360.

The previous prime is 222121240421. The next prime is 222121240441. The reversal of 222121240424 is 424042121222.

It is a junction number, because it is equal to n+sod(n) for n = 222121240393 and 222121240402.

It is not an unprimeable number, because it can be changed into a prime (222121240421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3552359 + ... + 3614345.

It is an arithmetic number, because the mean of its divisors is an integer number (13435899000).

Almost surely, 2^222121240424 is an apocalyptic number.

It is an amenable number.

222121240424 is a deficient number, since it is larger than the sum of its proper divisors (207827527576).

222121240424 is a wasteful number, since it uses less digits than its factorization.

222121240424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76473 (or 76469 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 222121240424 its reverse (424042121222), we get a palindrome (646163361646).

The spelling of 222121240424 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred forty thousand, four hundred twenty-four".