120100222200221 has 2 divisors, whose sum is σ = 120100222200222. Its totient is φ = 120100222200220.

The previous prime is 120100222200197. The next prime is 120100222200239. The reversal of 120100222200221 is 122002222001021.

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., 119858463144121 + 241759056100 = 10947989^2 + 491690^2 .

It is a cyclic number.

It is not a de Polignac number, because 120100222200221 - 2⁴⁶ = 49731478022557 is a prime.

It is a super-3 number, since 3×120100222200221³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120100222200221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120100222200281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050111100110 + 60050111100111.

It is an arithmetic number, because the mean of its divisors is an integer number (60050111100111).

Almost surely, 2^{120100222200221} is an apocalyptic number.

It is an amenable number.

120100222200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120100222200221 is an equidigital number, since it uses as much as digits as its factorization.

120100222200221 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 17.

Adding to 120100222200221 its reverse (122002222001021), we get a palindrome (242102444201242).

The spelling of 120100222200221 in words is "one hundred twenty trillion, one hundred billion, two hundred twenty-two million, two hundred thousand, two hundred twenty-one".