102220211511 has 24 divisors (see below), whose sum is σ = 161090551440. Its totient is φ = 61945382400.

The previous prime is 102220211507. The next prime is 102220211537. The reversal of 102220211511 is 115112022201.

It is not a de Polignac number, because 102220211511 - 2² = 102220211507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220211501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1049191 + ... + 1142471.

It is an arithmetic number, because the mean of its divisors is an integer number (6712106310).

Almost surely, 2^102220211511 is an apocalyptic number.

102220211511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102220211511 is a deficient number, since it is larger than the sum of its proper divisors (58870339929).

102220211511 is a wasteful number, since it uses less digits than its factorization.

102220211511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104367 (or 104364 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 102220211511 its reverse (115112022201), we get a palindrome (217332233712).

The spelling of 102220211511 in words is "one hundred two billion, two hundred twenty million, two hundred eleven thousand, five hundred eleven".