221011102231030 has 16 divisors (see below), whose sum is σ = 397826305871760. Its totient is φ = 88403036035552.

The previous prime is 221011102231013. The next prime is 221011102231091. The reversal of 221011102231030 is 30132201110122.

It is a junction number, because it is equal to n+sod(n) for n = 221011102230989 and 221011102231007.

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, 174946249 + ... + 176205028.

It is an arithmetic number, because the mean of its divisors is an integer number (24864144116985).

Almost surely, 2^{221011102231030} is an apocalyptic number.

221011102231030 is a deficient number, since it is larger than the sum of its proper divisors (176815203640730).

221011102231030 is a wasteful number, since it uses less digits than its factorization.

221011102231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351214223.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 221011102231030 its reverse (30132201110122), we get a palindrome (251143303341152).

The spelling of 221011102231030 in words is "two hundred twenty-one trillion, eleven billion, one hundred two million, two hundred thirty-one thousand, thirty".