221100230122032 has 80 divisors (see below), whose sum is σ = 571549898465280. Its totient is φ = 73651795032576.

The previous prime is 221100230121997. The next prime is 221100230122081. The reversal of 221100230122032 is 230221032001122.

It is a super-2 number, since 2×221100230122032² (a number of 29 digits) contains 22 as substring.

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, 458784748 + ... + 459266420.

It is an arithmetic number, because the mean of its divisors is an integer number (7144373730816).

Almost surely, 2^{221100230122032} is an apocalyptic number.

It is an amenable number.

221100230122032 is an abundant number, since it is smaller than the sum of its proper divisors (350449668343248).

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

221100230122032 is a wasteful number, since it uses less digits than its factorization.

221100230122032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487930 (or 487924 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221100230122032 its reverse (230221032001122), we get a palindrome (451321262123154).

The spelling of 221100230122032 in words is "two hundred twenty-one trillion, one hundred billion, two hundred thirty million, one hundred twenty-two thousand, thirty-two".