1112210121 has 32 divisors (see below), whose sum is σ = 1689753600. Its totient is φ = 644690880.

The previous prime is 1112210119. The next prime is 1112210173. The reversal of 1112210121 is 1210122111.

It is not a de Polignac number, because 1112210121 - 2¹ = 1112210119 is a prime.

It is a super-2 number, since 2×1112210121² = 2474022706509669282, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1112210097 and 1112210106.

It is not an unprimeable number, because it can be changed into a prime (1112210221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64320 + ... + 79758.

It is an arithmetic number, because the mean of its divisors is an integer number (52804800).

Almost surely, 2^1112210121 is an apocalyptic number.

1112210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112210121 is a deficient number, since it is larger than the sum of its proper divisors (577543479).

1112210121 is a wasteful number, since it uses less digits than its factorization.

1112210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15549.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1112210121 is about 33349.8144072797. The cubic root of 1112210121 is about 1036.0855440486.

Adding to 1112210121 its reverse (1210122111), we get a palindrome (2322332232).

The spelling of 1112210121 in words is "one billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-one".