220231422 has 48 divisors (see below), whose sum is σ = 483706080. Its totient is φ = 72413376.

The previous prime is 220231393. The next prime is 220231441. The reversal of 220231422 is 224132022.

220231422 is a `hidden beast` number, since 220 + 23 + 1 + 422 = 666.

It is a super-2 number, since 2×220231422² = 97003758472284168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220231395 and 220231404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613279 + ... + 613637.

It is an arithmetic number, because the mean of its divisors is an integer number (10077210).

Almost surely, 2^220231422 is an apocalyptic number.

220231422 is an abundant number, since it is smaller than the sum of its proper divisors (263474658).

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

220231422 is a wasteful number, since it uses less digits than its factorization.

220231422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220231422 is about 14840.1961577332. The cubic root of 220231422 is about 603.8926738675.

Adding to 220231422 its reverse (224132022), we get a palindrome (444363444).

The spelling of 220231422 in words is "two hundred twenty million, two hundred thirty-one thousand, four hundred twenty-two".