120222100212221 has 12 divisors (see below), whose sum is σ = 139882942584000. Its totient is φ = 103023387031320.

The previous prime is 120222100212217. The next prime is 120222100212257. The reversal of 120222100212221 is 122212001222021.

It is not a de Polignac number, because 120222100212221 - 2² = 120222100212217 is a prime.

It is a super-2 number, since 2×120222100212221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120222100212193 and 120222100212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120222100212121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287019971 + ... + 287438528.

It is an arithmetic number, because the mean of its divisors is an integer number (11656911882000).

Almost surely, 2^{120222100212221} is an apocalyptic number.

It is an amenable number.

120222100212221 is a deficient number, since it is larger than the sum of its proper divisors (19660842371779).

120222100212221 is an equidigital number, since it uses as much as digits as its factorization.

120222100212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574462784 (or 574462777 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 120222100212221 its reverse (122212001222021), we get a palindrome (242434101434242).

The spelling of 120222100212221 in words is "one hundred twenty trillion, two hundred twenty-two billion, one hundred million, two hundred twelve thousand, two hundred twenty-one".