120001222210 has 16 divisors (see below), whose sum is σ = 217578860856. Its totient is φ = 47650119808.

The previous prime is 120001222199. The next prime is 120001222223. The reversal of 120001222210 is 12222100021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 98371931449 + 21629290761 = 313643^2 + 147069^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43794697 + ... + 43797436.

Almost surely, 2^120001222210 is an apocalyptic number.

120001222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120001222210 is a deficient number, since it is larger than the sum of its proper divisors (97577638646).

120001222210 is a wasteful number, since it uses less digits than its factorization.

120001222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87592277.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120001222210 its reverse (12222100021), we get a palindrome (132223322231).

The spelling of 120001222210 in words is "one hundred twenty billion, one million, two hundred twenty-two thousand, two hundred ten".