101210102202221 has 2 divisors, whose sum is σ = 101210102202222. Its totient is φ = 101210102202220.

The previous prime is 101210102202133. The next prime is 101210102202233. The reversal of 101210102202221 is 122202201012101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91869560389321 + 9340541812900 = 9584861^2 + 3056230^2 .

It is a cyclic number.

It is not a de Polignac number, because 101210102202221 - 2²² = 101210098007917 is a prime.

It is a super-2 number, since 2×101210102202221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101210102202221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101210102282221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605051101110 + 50605051101111.

It is an arithmetic number, because the mean of its divisors is an integer number (50605051101111).

Almost surely, 2^{101210102202221} is an apocalyptic number.

It is an amenable number.

101210102202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210102202221 is an equidigital number, since it uses as much as digits as its factorization.

101210102202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101210102202221 its reverse (122202201012101), we get a palindrome (223412303214322).

The spelling of 101210102202221 in words is "one hundred one trillion, two hundred ten billion, one hundred two million, two hundred two thousand, two hundred twenty-one".