2021220110010 has 128 divisors (see below), whose sum is σ = 5293985587200. Its totient is φ = 491993429760.

The previous prime is 2021220109969. The next prime is 2021220110027. The reversal of 2021220110010 is 100110221202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3796677 + ... + 4296183.

It is an arithmetic number, because the mean of its divisors is an integer number (41359262400).

Almost surely, 2^{2021220110010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021220110010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2646992793600).

2021220110010 is an abundant number, since it is smaller than the sum of its proper divisors (3272765477190).

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

2021220110010 is a wasteful number, since it uses less digits than its factorization.

2021220110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499796.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021220110010 its reverse (100110221202), we get a palindrome (2121330331212).

The spelling of 2021220110010 in words is "two trillion, twenty-one billion, two hundred twenty million, one hundred ten thousand, ten".