2102012012 has 24 divisors (see below), whose sum is σ = 3755318112. Its totient is φ = 1029142400.

The previous prime is 2102011981. The next prime is 2102012027. The reversal of 2102012012 is 2102102012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2102011984 and 2102012002.

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, 100937 + ... + 119967.

It is an arithmetic number, because the mean of its divisors is an integer number (156471588).

Almost surely, 2^2102012012 is an apocalyptic number.

It is an amenable number.

2102012012 is a deficient number, since it is larger than the sum of its proper divisors (1653306100).

2102012012 is a wasteful number, since it uses less digits than its factorization.

2102012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19609 (or 19607 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2102012012 is about 45847.7045445026. The cubic root of 2102012012 is about 1280.9880091498.

Adding to 2102012012 its reverse (2102102012), we get a palindrome (4204114024).

Subtracting 2102012012 from its reverse (2102102012), we obtain a square (90000 = 300²).

The spelling of 2102012012 in words is "two billion, one hundred two million, twelve thousand, twelve".