2138202012 has 48 divisors (see below), whose sum is σ = 5337852800. Its totient is φ = 664148160.

The previous prime is 2138201971. The next prime is 2138202023. The reversal of 2138202012 is 2102028312.

It is a happy number.

It is a super-3 number, since 3×2138202012³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2138202012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62962 + ... + 90777.

Almost surely, 2^2138202012 is an apocalyptic number.

It is an amenable number.

2138202012 is an abundant number, since it is smaller than the sum of its proper divisors (3199650788).

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

2138202012 is a wasteful number, since it uses less digits than its factorization.

2138202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153826 (or 153824 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2138202012 is about 46240.6964912943. The cubic root of 2138202012 is about 1288.2977390910.

The spelling of 2138202012 in words is "two billion, one hundred thirty-eight million, two hundred two thousand, twelve".