100222071121 has 2 divisors, whose sum is σ = 100222071122. Its totient is φ = 100222071120.

The previous prime is 100222071107. The next prime is 100222071149. The reversal of 100222071121 is 121170222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55903400721 + 44318670400 = 236439^2 + 210520^2 .

It is an emirp because it is prime and its reverse (121170222001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100222071121 - 2¹³ = 100222062929 is a prime.

It is not a weakly prime, because it can be changed into another prime (100222071721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50111035560 + 50111035561.

It is an arithmetic number, because the mean of its divisors is an integer number (50111035561).

Almost surely, 2^100222071121 is an apocalyptic number.

It is an amenable number.

100222071121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100222071121 is an equidigital number, since it uses as much as digits as its factorization.

100222071121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 100222071121 its reverse (121170222001), we get a palindrome (221392293122).

The spelling of 100222071121 in words is "one hundred billion, two hundred twenty-two million, seventy-one thousand, one hundred twenty-one".