221434000422 has 16 divisors (see below), whose sum is σ = 445688818032. Its totient is φ = 73341197280.

The previous prime is 221434000399. The next prime is 221434000493. The reversal of 221434000422 is 224000434122.

It is a junction number, because it is equal to n+sod(n) for n = 221434000392 and 221434000401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117533029 + ... + 117534912.

It is an arithmetic number, because the mean of its divisors is an integer number (27855551127).

Almost surely, 2^221434000422 is an apocalyptic number.

221434000422 is an abundant number, since it is smaller than the sum of its proper divisors (224254817610).

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

221434000422 is a wasteful number, since it uses less digits than its factorization.

221434000422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235068103.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 221434000422 its reverse (224000434122), we get a palindrome (445434434544).

The spelling of 221434000422 in words is "two hundred twenty-one billion, four hundred thirty-four million, four hundred twenty-two", and thus it is an aban number.