101210110301221 has 2 divisors, whose sum is σ = 101210110301222. Its totient is φ = 101210110301220.

The previous prime is 101210110301023. The next prime is 101210110301257. The reversal of 101210110301221 is 122103011012101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87061122729025 + 14148987572196 = 9330655^2 + 3761514^2 .

It is a cyclic number.

It is not a de Polignac number, because 101210110301221 - 2¹¹ = 101210110299173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101210110301195 and 101210110301204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101210110301821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605055150610 + 50605055150611.

It is an arithmetic number, because the mean of its divisors is an integer number (50605055150611).

Almost surely, 2^{101210110301221} is an apocalyptic number.

It is an amenable number.

101210110301221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210110301221 is an equidigital number, since it uses as much as digits as its factorization.

101210110301221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101210110301221 its reverse (122103011012101), we get a palindrome (223313121313322).

The spelling of 101210110301221 in words is "one hundred one trillion, two hundred ten billion, one hundred ten million, three hundred one thousand, two hundred twenty-one".