222122122200101 has 2 divisors, whose sum is σ = 222122122200102. Its totient is φ = 222122122200100.

The previous prime is 222122122200079. The next prime is 222122122200169. The reversal of 222122122200101 is 101002221221222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158669267767201 + 63452854432900 = 12596399^2 + 7965730^2 .

It is a cyclic number.

It is not a de Polignac number, because 222122122200101 - 2²² = 222122118005797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222122122200701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111061061100050 + 111061061100051.

It is an arithmetic number, because the mean of its divisors is an integer number (111061061100051).

Almost surely, 2^{222122122200101} is an apocalyptic number.

It is an amenable number.

222122122200101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222122122200101 is an equidigital number, since it uses as much as digits as its factorization.

222122122200101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222122122200101 its reverse (101002221221222), we get a palindrome (323124343421323).

The spelling of 222122122200101 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred thousand, one hundred one".