221024214142 has 4 divisors (see below), whose sum is σ = 331536321216. Its totient is φ = 110512107070.

The previous prime is 221024214121. The next prime is 221024214181. The reversal of 221024214142 is 241412420122.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55256053534 + ... + 55256053537.

It is an arithmetic number, because the mean of its divisors is an integer number (82884080304).

Almost surely, 2^221024214142 is an apocalyptic number.

221024214142 is a deficient number, since it is larger than the sum of its proper divisors (110512107074).

221024214142 is a wasteful number, since it uses less digits than its factorization.

221024214142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110512107073.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 221024214142 its reverse (241412420122), we get a palindrome (462436634264).

The spelling of 221024214142 in words is "two hundred twenty-one billion, twenty-four million, two hundred fourteen thousand, one hundred forty-two".