2119112121 has 32 divisors (see below), whose sum is σ = 3261024000. Its totient is φ = 1199013120.

The previous prime is 2119112117. The next prime is 2119112131. The reversal of 2119112121 is 1212119112.

It is not a de Polignac number, because 2119112121 - 2² = 2119112117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2119112131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1216311 + ... + 1218051.

It is an arithmetic number, because the mean of its divisors is an integer number (101907000).

Almost surely, 2^2119112121 is an apocalyptic number.

2119112121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2119112121 is a deficient number, since it is larger than the sum of its proper divisors (1141911879).

2119112121 is a wasteful number, since it uses less digits than its factorization.

2119112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289.

The product of its digits is 72, while the sum is 21.

The square root of 2119112121 is about 46033.8149733432. The cubic root of 2119112121 is about 1284.4522934451.

The spelling of 2119112121 in words is "two billion, one hundred nineteen million, one hundred twelve thousand, one hundred twenty-one".