2212021021110 has 128 divisors (see below), whose sum is σ = 5551506063360. Its totient is φ = 563411721600.

The previous prime is 2212021021109. The next prime is 2212021021117. The reversal of 2212021021110 is 111201202122.

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 2212021021110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212021021117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 363159165 + ... + 363165255.

It is an arithmetic number, because the mean of its divisors is an integer number (43371141120).

Almost surely, 2^{2212021021110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212021021110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2775753031680).

2212021021110 is an abundant number, since it is smaller than the sum of its proper divisors (3339485042250).

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

2212021021110 is a wasteful number, since it uses less digits than its factorization.

2212021021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11154.

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

Adding to 2212021021110 its reverse (111201202122), we get a palindrome (2323222223232).

The spelling of 2212021021110 in words is "two trillion, two hundred twelve billion, twenty-one million, twenty-one thousand, one hundred ten".