2121320000210 has 16 divisors (see below), whose sum is σ = 3818400855192. Its totient is φ = 848522476800.

The previous prime is 2121320000209. The next prime is 2121320000269. The reversal of 2121320000210 is 120000231212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2110189117201 + 11130883009 = 1452649^2 + 105503^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158440 + ... + 2363180.

Almost surely, 2^{2121320000210} is an apocalyptic number.

2121320000210 is a deficient number, since it is larger than the sum of its proper divisors (1697080854982).

2121320000210 is a wasteful number, since it uses less digits than its factorization.

2121320000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380829.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2121320000210 its reverse (120000231212), we get a palindrome (2241320231422).

The spelling of 2121320000210 in words is "two trillion, one hundred twenty-one billion, three hundred twenty million, two hundred ten", and thus it is an aban number.