221011222120102 has 8 divisors (see below), whose sum is σ = 331610297197896. Its totient is φ = 110474456387472.

The previous prime is 221011222120093. The next prime is 221011222120127. The reversal of 221011222120102 is 201021222110122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221011222120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15577327423 + ... + 15577341610.

It is an arithmetic number, because the mean of its divisors is an integer number (41451287149737).

Almost surely, 2^{221011222120102} is an apocalyptic number.

221011222120102 is a deficient number, since it is larger than the sum of its proper divisors (110599075077794).

221011222120102 is a wasteful number, since it uses less digits than its factorization.

221011222120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31154672582.

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

Adding to 221011222120102 its reverse (201021222110122), we get a palindrome (422032444230224).

The spelling of 221011222120102 in words is "two hundred twenty-one trillion, eleven billion, two hundred twenty-two million, one hundred twenty thousand, one hundred two".