102221022111 has 12 divisors (see below), whose sum is σ = 147585381768. Its totient is φ = 62905244064.

The previous prime is 102221022107. The next prime is 102221022133. The reversal of 102221022111 is 111220122201.

It is not a de Polignac number, because 102221022111 - 2² = 102221022107 is a prime.

It is a super-2 number, since 2×102221022111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221022011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100809180 + ... + 100810193.

It is an arithmetic number, because the mean of its divisors is an integer number (12298781814).

Almost surely, 2^102221022111 is an apocalyptic number.

102221022111 is a deficient number, since it is larger than the sum of its proper divisors (45364359657).

102221022111 is a wasteful number, since it uses less digits than its factorization.

102221022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201619402 (or 201619389 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102221022111 its reverse (111220122201), we get a palindrome (213441144312).

The spelling of 102221022111 in words is "one hundred two billion, two hundred twenty-one million, twenty-two thousand, one hundred eleven".