221133420334 has 4 divisors (see below), whose sum is σ = 331700130504. Its totient is φ = 110566710166.

The previous prime is 221133420329. The next prime is 221133420341. The reversal of 221133420334 is 433024331122.

It is a happy number.

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

It is a super-2 number, since 2×221133420334² (a number of 23 digits) contains 22 as substring.

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, 55283355082 + ... + 55283355085.

It is an arithmetic number, because the mean of its divisors is an integer number (82925032626).

Almost surely, 2^221133420334 is an apocalyptic number.

221133420334 is a deficient number, since it is larger than the sum of its proper divisors (110566710170).

221133420334 is a wasteful number, since it uses less digits than its factorization.

221133420334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110566710169.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 221133420334 its reverse (433024331122), we get a palindrome (654157751456).

The spelling of 221133420334 in words is "two hundred twenty-one billion, one hundred thirty-three million, four hundred twenty thousand, three hundred thirty-four".