221441311142 has 4 divisors (see below), whose sum is σ = 332161966716. Its totient is φ = 110720655570.

The previous prime is 221441311123. The next prime is 221441311213. The reversal of 221441311142 is 241113144122.

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, 55360327784 + ... + 55360327787.

It is an arithmetic number, because the mean of its divisors is an integer number (83040491679).

Almost surely, 2^221441311142 is an apocalyptic number.

221441311142 is a deficient number, since it is larger than the sum of its proper divisors (110720655574).

221441311142 is a wasteful number, since it uses less digits than its factorization.

221441311142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110720655573.

The product of its digits is 1536, while the sum is 26.

Adding to 221441311142 its reverse (241113144122), we get a palindrome (462554455264).

The spelling of 221441311142 in words is "two hundred twenty-one billion, four hundred forty-one million, three hundred eleven thousand, one hundred forty-two".