101212220201 has 2 divisors, whose sum is σ = 101212220202. Its totient is φ = 101212220200.

The previous prime is 101212220167. The next prime is 101212220243. The reversal of 101212220201 is 102022212101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98596000000 + 2616220201 = 314000^2 + 51149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101212220201 is a prime.

It is not a weakly prime, because it can be changed into another prime (101212280201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606110100 + 50606110101.

It is an arithmetic number, because the mean of its divisors is an integer number (50606110101).

Almost surely, 2^101212220201 is an apocalyptic number.

It is an amenable number.

101212220201 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212220201 is an equidigital number, since it uses as much as digits as its factorization.

101212220201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101212220201 its reverse (102022212101), we get a palindrome (203234432302).

It can be divided in two parts, 10121 and 2220201, that added together give a palindrome (2230322).

The spelling of 101212220201 in words is "one hundred one billion, two hundred twelve million, two hundred twenty thousand, two hundred one".