10201020212 has 6 divisors (see below), whose sum is σ = 17851785378. Its totient is φ = 5100510104.

The previous prime is 10201020197. The next prime is 10201020223. The reversal of 10201020212 is 21202010201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6227735056 + 3973285156 = 78916^2 + 63034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10201020193 and 10201020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275127523 + ... + 1275127530.

It is an arithmetic number, because the mean of its divisors is an integer number (2975297563).

Almost surely, 2^10201020212 is an apocalyptic number.

It is an amenable number.

10201020212 is a deficient number, since it is larger than the sum of its proper divisors (7650765166).

10201020212 is a wasteful number, since it uses less digits than its factorization.

10201020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550255057 (or 2550255055 counting only the distinct ones).

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

Adding to 10201020212 its reverse (21202010201), we get a palindrome (31403030413).

The spelling of 10201020212 in words is "ten billion, two hundred one million, twenty thousand, two hundred twelve".