221233311342 has 32 divisors (see below), whose sum is σ = 492739407360. Its totient is φ = 73577963160.

The previous prime is 221233311337. The next prime is 221233311413. The reversal of 221233311342 is 243113332122.

221233311342 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 3 + 3 + 311 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 4600134 + ... + 4647977.

It is an arithmetic number, because the mean of its divisors is an integer number (15398106480).

Almost surely, 2^221233311342 is an apocalyptic number.

221233311342 is an abundant number, since it is smaller than the sum of its proper divisors (271506096018).

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

221233311342 is a wasteful number, since it uses less digits than its factorization.

221233311342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9248565 (or 9248559 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 221233311342 its reverse (243113332122), we get a palindrome (464346643464).

The spelling of 221233311342 in words is "two hundred twenty-one billion, two hundred thirty-three million, three hundred eleven thousand, three hundred forty-two".