102221220211 has 8 divisors (see below), whose sum is σ = 111516470784. Its totient is φ = 92926371720.

The previous prime is 102221220187. The next prime is 102221220229. The reversal of 102221220211 is 112022122201.

It is a happy number.

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 102221220211 - 2²³ = 102212831603 is a prime.

It is a super-2 number, since 2×102221220211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221220251) 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, 728026 + ... + 857008.

It is an arithmetic number, because the mean of its divisors is an integer number (13939558848).

Almost surely, 2^102221220211 is an apocalyptic number.

102221220211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102221220211 is a deficient number, since it is larger than the sum of its proper divisors (9295250573).

102221220211 is a wasteful number, since it uses less digits than its factorization.

102221220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201041.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102221220211 its reverse (112022122201), we get a palindrome (214243342412).

The spelling of 102221220211 in words is "one hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred eleven".