2102211220000 has 60 divisors (see below), whose sum is σ = 5171754982086. Its totient is φ = 840884480000.

The previous prime is 2102211219967. The next prime is 2102211220013. The reversal of 2102211220000 is 221122012.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 163956967056 + 1938254252944 = 404916^2 + 1392212^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 52535281 + ... + 52575280.

Almost surely, 2^{2102211220000} is an apocalyptic number.

2102211220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102211220000 is an abundant number, since it is smaller than the sum of its proper divisors (3069543762086).

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

2102211220000 is an equidigital number, since it uses as much as digits as its factorization.

2102211220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105110591 (or 105110568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2102211220000 its reverse (221122012), we get a palindrome (2102432342012).

The spelling of 2102211220000 in words is "two trillion, one hundred two billion, two hundred eleven million, two hundred twenty thousand".