120111222111212 has 6 divisors (see below), whose sum is σ = 210194638694628. Its totient is φ = 60055611055604.

The previous prime is 120111222111121. The next prime is 120111222111239. The reversal of 120111222111212 is 212111222111021.

It is a happy number.

It is a super-2 number, since 2×120111222111212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15013902763898 + ... + 15013902763905.

It is an arithmetic number, because the mean of its divisors is an integer number (35032439782438).

Almost surely, 2^{120111222111212} is an apocalyptic number.

It is an amenable number.

120111222111212 is a deficient number, since it is larger than the sum of its proper divisors (90083416583416).

120111222111212 is a wasteful number, since it uses less digits than its factorization.

120111222111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30027805527807 (or 30027805527805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 120111222111212 its reverse (212111222111021), we get a palindrome (332222444222233).

The spelling of 120111222111212 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twelve".