2101210012 has 36 divisors (see below), whose sum is σ = 4127830560. Its totient is φ = 934764160.

The previous prime is 2101210009. The next prime is 2101210031. The reversal of 2101210012 is 2100121012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23437 + ... + 68932.

It is an arithmetic number, because the mean of its divisors is an integer number (114661960).

Almost surely, 2^2101210012 is an apocalyptic number.

2101210012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101210012 is a deficient number, since it is larger than the sum of its proper divisors (2026620548).

2101210012 is a wasteful number, since it uses less digits than its factorization.

2101210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92442 (or 92429 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2101210012 is about 45838.9573616155. The cubic root of 2101210012 is about 1280.8250727087.

Adding to 2101210012 its reverse (2100121012), we get a palindrome (4201331024).

The spelling of 2101210012 in words is "two billion, one hundred one million, two hundred ten thousand, twelve".