221011012222102 has 16 divisors (see below), whose sum is σ = 339684060359952. Its totient is φ = 107784290090880.

The previous prime is 221011012222067. The next prime is 221011012222139. The reversal of 221011012222102 is 201222210110122.

221011012222102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221011012222102.

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, 324154548 + ... + 324835639.

It is an arithmetic number, because the mean of its divisors is an integer number (21230253772497).

Almost surely, 2^{221011012222102} is an apocalyptic number.

221011012222102 is a deficient number, since it is larger than the sum of its proper divisors (118673048137850).

221011012222102 is a wasteful number, since it uses less digits than its factorization.

221011012222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648994383.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221011012222102 its reverse (201222210110122), we get a palindrome (422233222332224).

The spelling of 221011012222102 in words is "two hundred twenty-one trillion, eleven billion, twelve million, two hundred twenty-two thousand, one hundred two".