222101112201121 has 2 divisors, whose sum is σ = 222101112201122. Its totient is φ = 222101112201120.

The previous prime is 222101112201113. The next prime is 222101112201131. The reversal of 222101112201121 is 121102211101222.

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., 132799349299600 + 89301762901521 = 11523860^2 + 9449961^2 .

It is a cyclic number.

It is not a de Polignac number, because 222101112201121 - 2³ = 222101112201113 is a prime.

It is not a weakly prime, because it can be changed into another prime (222101112201131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050556100560 + 111050556100561.

It is an arithmetic number, because the mean of its divisors is an integer number (111050556100561).

Almost surely, 2^{222101112201121} is an apocalyptic number.

It is an amenable number.

222101112201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

222101112201121 is an equidigital number, since it uses as much as digits as its factorization.

222101112201121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222101112201121 its reverse (121102211101222), we get a palindrome (343203323302343).

The spelling of 222101112201121 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred twelve million, two hundred one thousand, one hundred twenty-one".