221432053342 has 16 divisors (see below), whose sum is σ = 333749180160. Its totient is φ = 110182763808.

The previous prime is 221432053331. The next prime is 221432053357. The reversal of 221432053342 is 243350234122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916483 + ... + 1132609.

It is an arithmetic number, because the mean of its divisors is an integer number (20859323760).

Almost surely, 2^221432053342 is an apocalyptic number.

221432053342 is a deficient number, since it is larger than the sum of its proper divisors (112317126818).

221432053342 is a wasteful number, since it uses less digits than its factorization.

221432053342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218595.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 221432053342 its reverse (243350234122), we get a palindrome (464782287464).

The spelling of 221432053342 in words is "two hundred twenty-one billion, four hundred thirty-two million, fifty-three thousand, three hundred forty-two".