2120021200001 has 8 divisors (see below), whose sum is σ = 2139881125824. Its totient is φ = 2100162138160.

The previous prime is 2120021199997. The next prime is 2120021200007. The reversal of 2120021200001 is 1000021200212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120021200001 - 2² = 2120021199997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120021200007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5393516 + ... + 5773218.

It is an arithmetic number, because the mean of its divisors is an integer number (267485140728).

Almost surely, 2^{2120021200001} is an apocalyptic number.

It is an amenable number.

2120021200001 is a deficient number, since it is larger than the sum of its proper divisors (19859925823).

2120021200001 is a wasteful number, since it uses less digits than its factorization.

2120021200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431991.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2120021200001 its reverse (1000021200212), we get a palindrome (3120042400213).

The spelling of 2120021200001 in words is "two trillion, one hundred twenty billion, twenty-one million, two hundred thousand, one".