120001122222111 has 24 divisors (see below), whose sum is σ = 186719234798096. Its totient is φ = 73826738858880.

The previous prime is 120001122222089. The next prime is 120001122222161. The reversal of 120001122222111 is 111222221100021.

120001122222111 is a `hidden beast` number, since 1 + 200 + 0 + 11 + 222 + 221 + 11 = 666.

It is not a de Polignac number, because 120001122222111 - 2⁷ = 120001122221983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001122222161) 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, 139190545 + ... + 140050026.

Almost surely, 2^{120001122222111} is an apocalyptic number.

120001122222111 is a deficient number, since it is larger than the sum of its proper divisors (66718112575985).

120001122222111 is a wasteful number, since it uses less digits than its factorization.

120001122222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279244263 (or 279244260 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120001122222111 its reverse (111222221100021), we get a palindrome (231223343322132).

The spelling of 120001122222111 in words is "one hundred twenty trillion, one billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred eleven".