10101210212 has 24 divisors (see below), whose sum is σ = 18721626840. Its totient is φ = 4752322560.

The previous prime is 10101210191. The next prime is 10101210241. The reversal of 10101210212 is 21201210101.

It can be written as a sum of positive squares in 4 ways, for example, as 4964047936 + 5137162276 = 70456^2 + 71674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10101210193 and 10101210202.

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, 293864 + ... + 326432.

It is an arithmetic number, because the mean of its divisors is an integer number (780067785).

Almost surely, 2^10101210212 is an apocalyptic number.

It is an amenable number.

10101210212 is a deficient number, since it is larger than the sum of its proper divisors (8620416628).

10101210212 is a wasteful number, since it uses less digits than its factorization.

10101210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37151 (or 37149 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10101210212 its reverse (21201210101), we get a palindrome (31302420313).

The spelling of 10101210212 in words is "ten billion, one hundred one million, two hundred ten thousand, two hundred twelve".