2123201220000 has 240 divisors, whose sum is σ = 7959458308032. Its totient is φ = 485303040000.

The previous prime is 2123201219977. The next prime is 2123201220001. The reversal of 2123201220000 is 221023212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2123201220001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2107621 + ... + 2947620.

Almost surely, 2^{2123201220000} is an apocalyptic number.

2123201220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123201220000 is an abundant number, since it is smaller than the sum of its proper divisors (5836257088032).

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

2123201220000 is an equidigital number, since it uses as much as digits as its factorization.

2123201220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055281 (or 5055258 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 2123201220000 its reverse (221023212), we get a palindrome (2123422243212).

The spelling of 2123201220000 in words is "two trillion, one hundred twenty-three billion, two hundred one million, two hundred twenty thousand".