221233312142 has 4 divisors (see below), whose sum is σ = 331849968216. Its totient is φ = 110616656070.

The previous prime is 221233312103. The next prime is 221233312211. The reversal of 221233312142 is 241213332122.

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, 55308328034 + ... + 55308328037.

It is an arithmetic number, because the mean of its divisors is an integer number (82962492054).

Almost surely, 2^221233312142 is an apocalyptic number.

221233312142 is a deficient number, since it is larger than the sum of its proper divisors (110616656074).

221233312142 is a wasteful number, since it uses less digits than its factorization.

221233312142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110616656073.

The product of its digits is 3456, while the sum is 26.

Adding to 221233312142 its reverse (241213332122), we get a palindrome (462446644264).

The spelling of 221233312142 in words is "two hundred twenty-one billion, two hundred thirty-three million, three hundred twelve thousand, one hundred forty-two".