2021121200002 has 8 divisors (see below), whose sum is σ = 3042626500476. Its totient is φ = 1006912366512.

The previous prime is 2021121199919. The next prime is 2021121200039. The reversal of 2021121200002 is 2000021211202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2012820350121 + 8300849881 = 1418739^2 + 91109^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 1824116053 + ... + 1824117160.

Almost surely, 2^{2021121200002} is an apocalyptic number.

2021121200002 is a deficient number, since it is larger than the sum of its proper divisors (1021505300474).

2021121200002 is a wasteful number, since it uses less digits than its factorization.

2021121200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648233492.

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

Adding to 2021121200002 its reverse (2000021211202), we get a palindrome (4021142411204).

The spelling of 2021121200002 in words is "two trillion, twenty-one billion, one hundred twenty-one million, two hundred thousand, two".