120210122211111 has 24 divisors (see below), whose sum is σ = 185605448517216. Its totient is φ = 74786078146560.

The previous prime is 120210122211089. The next prime is 120210122211131. The reversal of 120210122211111 is 111112221012021.

It is a happy number.

120210122211111 is a `hidden beast` number, since 12 + 0 + 210 + 122 + 211 + 111 = 666.

It is not a de Polignac number, because 120210122211111 - 2¹¹ = 120210122209063 is a prime.

It is a super-3 number, since 3×120210122211111³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210122211131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7082006490 + ... + 7082023463.

It is an arithmetic number, because the mean of its divisors is an integer number (7733560354884).

Almost surely, 2^{120210122211111} is an apocalyptic number.

120210122211111 is a deficient number, since it is larger than the sum of its proper divisors (65395326306105).

120210122211111 is a wasteful number, since it uses less digits than its factorization.

120210122211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14164030023 (or 14164030020 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 120210122211111 its reverse (111112221012021), we get a palindrome (231322343223132).

The spelling of 120210122211111 in words is "one hundred twenty trillion, two hundred ten billion, one hundred twenty-two million, two hundred eleven thousand, one hundred eleven".