2121630320210 has 16 divisors (see below), whose sum is σ = 3825310104000. Its totient is φ = 847235344176.

The previous prime is 2121630320179. The next prime is 2121630320263. The reversal of 2121630320210 is 120230361212.

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, 177091700 + ... + 177103679.

It is an arithmetic number, because the mean of its divisors is an integer number (239081881500).

Almost surely, 2^{2121630320210} is an apocalyptic number.

2121630320210 is a deficient number, since it is larger than the sum of its proper divisors (1703679783790).

2121630320210 is a wasteful number, since it uses less digits than its factorization.

2121630320210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354195985.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2121630320210 its reverse (120230361212), we get a palindrome (2241860681422).

The spelling of 2121630320210 in words is "two trillion, one hundred twenty-one billion, six hundred thirty million, three hundred twenty thousand, two hundred ten".