212220210110101 has 2 divisors, whose sum is σ = 212220210110102. Its totient is φ = 212220210110100.

The previous prime is 212220210110093. The next prime is 212220210110147. The reversal of 212220210110101 is 101011012022212.

212220210110101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133490063364100 + 78730146746001 = 11553790^2 + 8873001^2 .

It is a cyclic number.

It is not a de Polignac number, because 212220210110101 - 2³ = 212220210110093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212220210210101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110105055050 + 106110105055051.

It is an arithmetic number, because the mean of its divisors is an integer number (106110105055051).

Almost surely, 2^{212220210110101} is an apocalyptic number.

It is an amenable number.

212220210110101 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220210110101 is an equidigital number, since it uses as much as digits as its factorization.

212220210110101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212220210110101 its reverse (101011012022212), we get a palindrome (313231222132313).

The spelling of 212220210110101 in words is "two hundred twelve trillion, two hundred twenty billion, two hundred ten million, one hundred ten thousand, one hundred one".