222431424100 has 18 divisors (see below), whose sum is σ = 482676190514. Its totient is φ = 88972569600.

The previous prime is 222431424049. The next prime is 222431424101. The reversal of 222431424100 is 1424134222.

It can be written as a sum of positive squares in 3 ways, for example, as 63053218816 + 159378205284 = 251104^2 + 399222^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (222431424101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1112157021 + ... + 1112157220.

Almost surely, 2^222431424100 is an apocalyptic number.

222431424100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222431424100 is an abundant number, since it is smaller than the sum of its proper divisors (260244766414).

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

222431424100 is a wasteful number, since it uses less digits than its factorization.

222431424100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224314255 (or 2224314248 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 222431424100 its reverse (1424134222), we get a palindrome (223855558322).

The spelling of 222431424100 in words is "two hundred twenty-two billion, four hundred thirty-one million, four hundred twenty-four thousand, one hundred".