2123213200000 has 96 divisors (see below), whose sum is σ = 5286961105020. Its totient is φ = 849285120000.

The previous prime is 2123213199973. The next prime is 2123213200019. The reversal of 2123213200000 is 23123212.

It can be written as a sum of positive squares in 6 ways, for example, as 646171607104 + 1477041592896 = 803848^2 + 1215336^2 .

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 11 ways as a sum of consecutive naturals, for example, 2254017 + ... + 3054016.

Almost surely, 2^{2123213200000} is an apocalyptic number.

2123213200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123213200000 is an abundant number, since it is smaller than the sum of its proper divisors (3163747905020).

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

2123213200000 is an frugal number, since it uses more digits than its factorization.

2123213200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308072 (or 5308040 counting only the distinct ones).

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

Adding to 2123213200000 its reverse (23123212), we get a palindrome (2123236323212).

The spelling of 2123213200000 in words is "two trillion, one hundred twenty-three billion, two hundred thirteen million, two hundred thousand".