101200221212221 has 2 divisors, whose sum is σ = 101200221212222. Its totient is φ = 101200221212220.

The previous prime is 101200221212171. The next prime is 101200221212231. The reversal of 101200221212221 is 122212122002101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92729292456025 + 8470928756196 = 9629605^2 + 2910486^2 .

It is a cyclic number.

It is not a de Polignac number, because 101200221212221 - 2¹⁷ = 101200221081149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101200221212231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600110606110 + 50600110606111.

It is an arithmetic number, because the mean of its divisors is an integer number (50600110606111).

Almost surely, 2^{101200221212221} is an apocalyptic number.

It is an amenable number.

101200221212221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101200221212221 is an equidigital number, since it uses as much as digits as its factorization.

101200221212221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101200221212221 its reverse (122212122002101), we get a palindrome (223412343214322).

The spelling of 101200221212221 in words is "one hundred one trillion, two hundred billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twenty-one".