2101020212 has 12 divisors (see below), whose sum is σ = 3688610016. Its totient is φ = 1047131640.

The previous prime is 2101020203. The next prime is 2101020379. The reversal of 2101020212 is 2120201012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101020193 and 2101020202.

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, 843218 + ... + 845705.

It is an arithmetic number, because the mean of its divisors is an integer number (307384168).

Almost surely, 2^2101020212 is an apocalyptic number.

It is an amenable number.

2101020212 is a deficient number, since it is larger than the sum of its proper divisors (1587589804).

2101020212 is a wasteful number, since it uses less digits than its factorization.

2101020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689238 (or 1689236 counting only the distinct ones).

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

The square root of 2101020212 is about 45836.8870234443. The cubic root of 2101020212 is about 1280.7865063719.

Adding to 2101020212 its reverse (2120201012), we get a palindrome (4221221224).

The spelling of 2101020212 in words is "two billion, one hundred one million, twenty thousand, two hundred twelve".