2121201020002 has 8 divisors (see below), whose sum is σ = 3181844911212. Its totient is φ = 1060586049600.

The previous prime is 2121201019921. The next prime is 2121201020023. The reversal of 2121201020002 is 2000201021212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2086288471201 + 34912548801 = 1444399^2 + 186849^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7045899 + ... + 7340782.

Almost surely, 2^{2121201020002} is an apocalyptic number.

2121201020002 is a deficient number, since it is larger than the sum of its proper divisors (1060643891210).

2121201020002 is a wasteful number, since it uses less digits than its factorization.

2121201020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14460404.

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

Adding to 2121201020002 its reverse (2000201021212), we get a palindrome (4121402041214).

The spelling of 2121201020002 in words is "two trillion, one hundred twenty-one billion, two hundred one million, twenty thousand, two".