102220111211 has 2 divisors, whose sum is σ = 102220111212. Its totient is φ = 102220111210.

The previous prime is 102220111187. The next prime is 102220111219. The reversal of 102220111211 is 112111022201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102220111211 is a prime.

It is a super-2 number, since 2×102220111211² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102220111219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110055605 + 51110055606.

It is an arithmetic number, because the mean of its divisors is an integer number (51110055606).

Almost surely, 2^102220111211 is an apocalyptic number.

102220111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220111211 is an equidigital number, since it uses as much as digits as its factorization.

102220111211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102220111211 its reverse (112111022201), we get a palindrome (214331133412).

It can be divided in two parts, 1022201 and 11211, that multiplied together give a palindrome (11459895411).

The spelling of 102220111211 in words is "one hundred two billion, two hundred twenty million, one hundred eleven thousand, two hundred eleven".