2103213220000 has 120 divisors (see below), whose sum is σ = 5245103370276. Its totient is φ = 829760256000.

The previous prime is 2103213219977. The next prime is 2103213220037. The reversal of 2103213220000 is 223123012.

It can be written as a sum of positive squares in 10 ways, for example, as 2789107344 + 2100424112656 = 52812^2 + 1449284^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 739722 + ... + 2180278.

Almost surely, 2^{2103213220000} is an apocalyptic number.

2103213220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103213220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2622551685138).

2103213220000 is an abundant number, since it is smaller than the sum of its proper divisors (3141890150276).

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

2103213220000 is an equidigital number, since it uses as much as digits as its factorization.

2103213220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440660 (or 1440637 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2103213220000 its reverse (223123012), we get a palindrome (2103436343012).

The spelling of 2103213220000 in words is "two trillion, one hundred three billion, two hundred thirteen million, two hundred twenty thousand".