2122222220101 has 2 divisors, whose sum is σ = 2122222220102. Its totient is φ = 2122222220100.

The previous prime is 2122222220087. The next prime is 2122222220141. The reversal of 2122222220101 is 1010222222212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1750987916001 + 371234304100 = 1323249^2 + 609290^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122222220101 - 2⁷ = 2122222219973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122222220141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061111110050 + 1061111110051.

It is an arithmetic number, because the mean of its divisors is an integer number (1061111110051).

Almost surely, 2^{2122222220101} is an apocalyptic number.

It is an amenable number.

2122222220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122222220101 is an equidigital number, since it uses as much as digits as its factorization.

2122222220101 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 19.

Adding to 2122222220101 its reverse (1010222222212), we get a palindrome (3132444442313).

The spelling of 2122222220101 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty thousand, one hundred one".