2211031032020 has 48 divisors (see below), whose sum is σ = 4933092583440. Its totient is φ = 830836629504.

The previous prime is 2211031031999. The next prime is 2211031032029. The reversal of 2211031032020 is 202301301122.

It can be written as a sum of positive squares in 8 ways, for example, as 413238122896 + 1797792909124 = 642836^2 + 1340818^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2211031032020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211031032029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51493709 + ... + 51536628.

It is an arithmetic number, because the mean of its divisors is an integer number (102772762155).

Almost surely, 2^{2211031032020} is an apocalyptic number.

2211031032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211031032020 is an abundant number, since it is smaller than the sum of its proper divisors (2722061551420).

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

2211031032020 is a wasteful number, since it uses less digits than its factorization.

2211031032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103030412 (or 103030410 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2211031032020 its reverse (202301301122), we get a palindrome (2413332333142).

The spelling of 2211031032020 in words is "two trillion, two hundred eleven billion, thirty-one million, thirty-two thousand, twenty".