102220111069 has 2 divisors, whose sum is σ = 102220111070. Its totient is φ = 102220111068.

The previous prime is 102220111057. The next prime is 102220111129. The reversal of 102220111069 is 960111022201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74684691225 + 27535419844 = 273285^2 + 165938^2 .

It is a cyclic number.

It is not a de Polignac number, because 102220111069 - 2²³ = 102211722461 is a prime.

It is a super-2 number, since 2×102220111069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102220111039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110055534 + 51110055535.

It is an arithmetic number, because the mean of its divisors is an integer number (51110055535).

Almost surely, 2^102220111069 is an apocalyptic number.

It is an amenable number.

102220111069 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220111069 is an equidigital number, since it uses as much as digits as its factorization.

102220111069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 102220111069 in words is "one hundred two billion, two hundred twenty million, one hundred eleven thousand, sixty-nine".