2112101220210 has 32 divisors (see below), whose sum is σ = 5140437904512. Its totient is φ = 555294216960.

The previous prime is 2112101220193. The next prime is 2112101220217. The reversal of 2112101220210 is 120221012112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2112101220210.

It is not an unprimeable number, because it can be changed into a prime (2112101220217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495796279 + ... + 495800538.

It is an arithmetic number, because the mean of its divisors is an integer number (160638684516).

Almost surely, 2^{2112101220210} is an apocalyptic number.

2112101220210 is an abundant number, since it is smaller than the sum of its proper divisors (3028336684302).

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

2112101220210 is a wasteful number, since it uses less digits than its factorization.

2112101220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991596898.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2112101220210 its reverse (120221012112), we get a palindrome (2232322232322).

The spelling of 2112101220210 in words is "two trillion, one hundred twelve billion, one hundred one million, two hundred twenty thousand, two hundred ten".