2061212216 has 16 divisors (see below), whose sum is σ = 4416883440. Its totient is φ = 883376640.

The previous prime is 2061212191. The next prime is 2061212221. The reversal of 2061212216 is 6122121602.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2061212191 and 2061212200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18403625 + ... + 18403736.

It is an arithmetic number, because the mean of its divisors is an integer number (276055215).

Almost surely, 2^2061212216 is an apocalyptic number.

It is an amenable number.

2061212216 is an abundant number, since it is smaller than the sum of its proper divisors (2355671224).

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

2061212216 is a wasteful number, since it uses less digits than its factorization.

2061212216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36807374 (or 36807370 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2061212216 is about 45400.5750624373. The cubic root of 2061212216 is about 1272.6458605154.

Adding to 2061212216 its reverse (6122121602), we get a palindrome (8183333818).

The spelling of 2061212216 in words is "two billion, sixty-one million, two hundred twelve thousand, two hundred sixteen".