101202001202221 has 2 divisors, whose sum is σ = 101202001202222. Its totient is φ = 101202001202220.

The previous prime is 101202001202219. The next prime is 101202001202227. The reversal of 101202001202221 is 122202100202101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78706085006025 + 22495916196196 = 8871645^2 + 4742986^2 .

It is a cyclic number.

It is not a de Polignac number, because 101202001202221 - 2¹ = 101202001202219 is a prime.

Together with 101202001202219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 101202001202195 and 101202001202204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101202001202227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50601000601110 + 50601000601111.

It is an arithmetic number, because the mean of its divisors is an integer number (50601000601111).

Almost surely, 2^{101202001202221} is an apocalyptic number.

It is an amenable number.

101202001202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101202001202221 is an equidigital number, since it uses as much as digits as its factorization.

101202001202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101202001202221 its reverse (122202100202101), we get a palindrome (223404101404322).

The spelling of 101202001202221 in words is "one hundred one trillion, two hundred two billion, one million, two hundred two thousand, two hundred twenty-one".