1210100100212 has 12 divisors (see below), whose sum is σ = 2242244303460. Its totient is φ = 569458870656.

The previous prime is 1210100100197. The next prime is 1210100100247. The reversal of 1210100100212 is 2120010010121.

It can be written as a sum of positive squares in 2 ways, for example, as 992502107536 + 217597992676 = 996244^2 + 466474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210100100193 and 1210100100202.

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, 8897794787 + ... + 8897794922.

It is an arithmetic number, because the mean of its divisors is an integer number (186853691955).

Almost surely, 2^{1210100100212} is an apocalyptic number.

It is an amenable number.

1210100100212 is a deficient number, since it is larger than the sum of its proper divisors (1032144203248).

1210100100212 is a wasteful number, since it uses less digits than its factorization.

1210100100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17795589730 (or 17795589728 counting only the distinct ones).

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

Adding to 1210100100212 its reverse (2120010010121), we get a palindrome (3330110110333).

Subtracting 1210100100212 from its reverse (2120010010121), we obtain a palindrome (909909909909).

The spelling of 1210100100212 in words is "one trillion, two hundred ten billion, one hundred million, one hundred thousand, two hundred twelve".