2012112221210 has 64 divisors (see below), whose sum is σ = 4561267721472. Its totient is φ = 621991028736.

The previous prime is 2012112221159. The next prime is 2012112221221. The reversal of 2012112221210 is 121222112102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25671479 + ... + 25749738.

It is an arithmetic number, because the mean of its divisors is an integer number (71269808148).

Almost surely, 2^{2012112221210} is an apocalyptic number.

2012112221210 is an abundant number, since it is smaller than the sum of its proper divisors (2549155500262).

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

2012112221210 is a wasteful number, since it uses less digits than its factorization.

2012112221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51421287.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012112221210 its reverse (121222112102), we get a palindrome (2133334333312).

It can be divided in two parts, 2012112 and 221210, that added together give a palindrome (2233322).

The spelling of 2012112221210 in words is "two trillion, twelve billion, one hundred twelve million, two hundred twenty-one thousand, two hundred ten".