2101310212 has 6 divisors (see below), whose sum is σ = 3677292878. Its totient is φ = 1050655104.

The previous prime is 2101310209. The next prime is 2101310243. The reversal of 2101310212 is 2120131012.

It can be written as a sum of positive squares in only one way, i.e., 1965680896 + 135629316 = 44336^2 + 11646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101310192 and 2101310201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262663773 + ... + 262663780.

Almost surely, 2^2101310212 is an apocalyptic number.

It is an amenable number.

2101310212 is a deficient number, since it is larger than the sum of its proper divisors (1575982666).

2101310212 is a wasteful number, since it uses less digits than its factorization.

2101310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525327557 (or 525327555 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2101310212 is about 45840.0503053825. The cubic root of 2101310212 is about 1280.8454318718.

Adding to 2101310212 its reverse (2120131012), we get a palindrome (4221441224).

The spelling of 2101310212 in words is "two billion, one hundred one million, three hundred ten thousand, two hundred twelve".