2231101211020 has 48 divisors (see below), whose sum is σ = 5113534003200. Its totient is φ = 810946998720.

The previous prime is 2231101210981. The next prime is 2231101211021. The reversal of 2231101211020 is 201121011322.

It is a super-3 number, since 3×2231101211020³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2231101210985 and 2231101211003.

It is not an unprimeable number, because it can be changed into a prime (2231101211021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1772130 + ... + 2757289.

It is an arithmetic number, because the mean of its divisors is an integer number (106531958400).

Almost surely, 2^{2231101211020} is an apocalyptic number.

2231101211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231101211020 is an abundant number, since it is smaller than the sum of its proper divisors (2882432792180).

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

2231101211020 is a wasteful number, since it uses less digits than its factorization.

2231101211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531678 (or 4531676 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2231101211020 its reverse (201121011322), we get a palindrome (2432222222342).

The spelling of 2231101211020 in words is "two trillion, two hundred thirty-one billion, one hundred one million, two hundred eleven thousand, twenty".