2211231203120 has 20 divisors (see below), whose sum is σ = 5141112547440. Its totient is φ = 884492481216.

The previous prime is 2211231203101. The next prime is 2211231203143. The reversal of 2211231203120 is 213021321122.

2211231203120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2211231203092 and 2211231203101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13820194940 + ... + 13820195099.

It is an arithmetic number, because the mean of its divisors is an integer number (257055627372).

Almost surely, 2^{2211231203120} is an apocalyptic number.

2211231203120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211231203120 is an abundant number, since it is smaller than the sum of its proper divisors (2929881344320).

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

2211231203120 is a wasteful number, since it uses less digits than its factorization.

2211231203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27640390052 (or 27640390046 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2211231203120 its reverse (213021321122), we get a palindrome (2424252524242).

The spelling of 2211231203120 in words is "two trillion, two hundred eleven billion, two hundred thirty-one million, two hundred three thousand, one hundred twenty".