120222101221 has 2 divisors, whose sum is σ = 120222101222. Its totient is φ = 120222101220.

The previous prime is 120222101203. The next prime is 120222101231. The reversal of 120222101221 is 122101222021.

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., 120221692900 + 408321 = 346730^2 + 639^2 .

It is an emirp because it is prime and its reverse (122101222021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120222101221 - 2⁷ = 120222101093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120222101195 and 120222101204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120222101231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111050610 + 60111050611.

It is an arithmetic number, because the mean of its divisors is an integer number (60111050611).

Almost surely, 2^120222101221 is an apocalyptic number.

It is an amenable number.

120222101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120222101221 is an equidigital number, since it uses as much as digits as its factorization.

120222101221 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 120222101221 its reverse (122101222021), we get a palindrome (242323323242).

The spelling of 120222101221 in words is "one hundred twenty billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty-one".