221052434122 has 16 divisors (see below), whose sum is σ = 375878633760. Its totient is φ = 96654505392.

The previous prime is 221052434051. The next prime is 221052434123. The reversal of 221052434122 is 221434250122.

It is a super-2 number, since 2×221052434122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221052434123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223736788 + ... + 223737775.

It is an arithmetic number, because the mean of its divisors is an integer number (23492414610).

Almost surely, 2^221052434122 is an apocalyptic number.

221052434122 is a deficient number, since it is larger than the sum of its proper divisors (154826199638).

221052434122 is a wasteful number, since it uses less digits than its factorization.

221052434122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447474597.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 221052434122 its reverse (221434250122), we get a palindrome (442486684244).

The spelling of 221052434122 in words is "two hundred twenty-one billion, fifty-two million, four hundred thirty-four thousand, one hundred twenty-two".