2116121016 has 32 divisors (see below), whose sum is σ = 5305482000. Its totient is φ = 703349760.

The previous prime is 2116120973. The next prime is 2116121027. The reversal of 2116121016 is 6101216112.

2116121016 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2116120983 and 2116121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117945 + ... + 134696.

Almost surely, 2^2116121016 is an apocalyptic number.

It is an amenable number.

2116121016 is an abundant number, since it is smaller than the sum of its proper divisors (3189360984).

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

2116121016 is a wasteful number, since it uses less digits than its factorization.

2116121016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252999 (or 252995 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2116121016 is about 46001.3153724978. The cubic root of 2116121016 is about 1283.8476784787.

Adding to 2116121016 its reverse (6101216112), we get a palindrome (8217337128).

The spelling of 2116121016 in words is "two billion, one hundred sixteen million, one hundred twenty-one thousand, sixteen".