221222024342 has 32 divisors (see below), whose sum is σ = 363634064640. Its totient is φ = 100102442080.

The previous prime is 221222024321. The next prime is 221222024381. The reversal of 221222024342 is 243420222122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4612268 + ... + 4659984.

It is an arithmetic number, because the mean of its divisors is an integer number (11363564520).

Almost surely, 2^221222024342 is an apocalyptic number.

221222024342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221222024342 is a deficient number, since it is larger than the sum of its proper divisors (142412040298).

221222024342 is a wasteful number, since it uses less digits than its factorization.

221222024342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48676.

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

Adding to 221222024342 its reverse (243420222122), we get a palindrome (464642246464).

The spelling of 221222024342 in words is "two hundred twenty-one billion, two hundred twenty-two million, twenty-four thousand, three hundred forty-two".