102221121211 has 8 divisors (see below), whose sum is σ = 114107298624. Its totient is φ = 90767168520.

The previous prime is 102221121203. The next prime is 102221121217. The reversal of 102221121211 is 112121122201.

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

It is a cyclic number.

It is not a de Polignac number, because 102221121211 - 2³ = 102221121203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102221121217) 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, 108055681 + ... + 108056626.

It is an arithmetic number, because the mean of its divisors is an integer number (14263412328).

Almost surely, 2^102221121211 is an apocalyptic number.

102221121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102221121211 is a deficient number, since it is larger than the sum of its proper divisors (11886177413).

102221121211 is a wasteful number, since it uses less digits than its factorization.

102221121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216112361.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102221121211 its reverse (112121122201), we get a palindrome (214342243412).

The spelling of 102221121211 in words is "one hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".