2111121108 has 36 divisors (see below), whose sum is σ = 5404002240. Its totient is φ = 694798416.

The previous prime is 2111121101. The next prime is 2111121139. The reversal of 2111121108 is 8011211112.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111121101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368310 + ... + 373997.

Almost surely, 2^2111121108 is an apocalyptic number.

It is an amenable number.

2111121108 is an abundant number, since it is smaller than the sum of its proper divisors (3292881132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111121108 is a wasteful number, since it uses less digits than its factorization.

2111121108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742396 (or 742391 counting only the distinct ones).

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

The square root of 2111121108 is about 45946.9379610872. The cubic root of 2111121108 is about 1282.8357353192.

The spelling of 2111121108 in words is "two billion, one hundred eleven million, one hundred twenty-one thousand, one hundred eight".