221420434022 has 8 divisors (see below), whose sum is σ = 332372556576. Its totient is φ = 110629581832.

The previous prime is 221420434019. The next prime is 221420434043. The reversal of 221420434022 is 220434024122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221420433982 and 221420434000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40314158 + ... + 40319649.

It is an arithmetic number, because the mean of its divisors is an integer number (41546569572).

Almost surely, 2^221420434022 is an apocalyptic number.

221420434022 is a deficient number, since it is larger than the sum of its proper divisors (110952122554).

221420434022 is a wasteful number, since it uses less digits than its factorization.

221420434022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80635182.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 221420434022 its reverse (220434024122), we get a palindrome (441854458144).

The spelling of 221420434022 in words is "two hundred twenty-one billion, four hundred twenty million, four hundred thirty-four thousand, twenty-two".