2122221010 has 64 divisors (see below), whose sum is σ = 4978132992. Its totient is φ = 632134656.

The previous prime is 2122220983. The next prime is 2122221019. The reversal of 2122221010 is 101222212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (2122221019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53122 + ... + 84061.

It is an arithmetic number, because the mean of its divisors is an integer number (77783328).

Almost surely, 2^2122221010 is an apocalyptic number.

2122221010 is an abundant number, since it is smaller than the sum of its proper divisors (2855911982).

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

2122221010 is a wasteful number, since it uses less digits than its factorization.

2122221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137227.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2122221010 is about 46067.5700466174. The cubic root of 2122221010 is about 1285.0801143105.

Adding to 2122221010 its reverse (101222212), we get a palindrome (2223443222).

It can be divided in two parts, 212 and 2221010, that added together give a palindrome (2221222).

The spelling of 2122221010 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, ten".