2122121222210 has 64 divisors (see below), whose sum is σ = 4455881933184. Its totient is φ = 719096448000.

The previous prime is 2122121222203. The next prime is 2122121222213. The reversal of 2122121222210 is 122221212212.

It is not an unprimeable number, because it can be changed into a prime (2122121222213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5429072 + ... + 5806811.

It is an arithmetic number, because the mean of its divisors is an integer number (69623155206).

Almost surely, 2^{2122121222210} is an apocalyptic number.

2122121222210 is an abundant number, since it is smaller than the sum of its proper divisors (2333760710974).

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

2122121222210 is a wasteful number, since it uses less digits than its factorization.

2122121222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11236019.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2122121222210 its reverse (122221212212), we get a palindrome (2244342434422).

The spelling of 2122121222210 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred ten".