212102010211122 has 24 divisors (see below), whose sum is σ = 459607810992876. Its totient is φ = 70692446141856.

The previous prime is 212102010211111. The next prime is 212102010211129. The reversal of 212102010211122 is 221112010201212.

212102010211122 is a `hidden beast` number, since 21 + 210 + 201 + 0 + 211 + 1 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 166860230318721 + 45241779892401 = 12917439^2 + 6726201^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212102010211095 and 212102010211104.

It is not an unprimeable number, because it can be changed into a prime (212102010211129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 685168333 + ... + 685477824.

Almost surely, 2^{212102010211122} is an apocalyptic number.

212102010211122 is an abundant number, since it is smaller than the sum of its proper divisors (247505800781754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212102010211122 is a wasteful number, since it uses less digits than its factorization.

212102010211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370654762 (or 1370654759 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212102010211122 its reverse (221112010201212), we get a palindrome (433214020412334).

The spelling of 212102010211122 in words is "two hundred twelve trillion, one hundred two billion, ten million, two hundred eleven thousand, one hundred twenty-two".