221020000010210 has 16 divisors (see below), whose sum is σ = 397958073105600. Its totient is φ = 88380872651376.

The previous prime is 221020000010209. The next prime is 221020000010231. The reversal of 221020000010210 is 12010000020122.

It is a happy number.

221020000010210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221020000010191 and 221020000010200.

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, 3390884870 + ... + 3390950049.

It is an arithmetic number, because the mean of its divisors is an integer number (24872379569100).

Almost surely, 2^{221020000010210} is an apocalyptic number.

221020000010210 is a deficient number, since it is larger than the sum of its proper divisors (176938073095390).

221020000010210 is a wasteful number, since it uses less digits than its factorization.

221020000010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781838185.

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

Adding to 221020000010210 its reverse (12010000020122), we get a palindrome (233030000030332).

The spelling of 221020000010210 in words is "two hundred twenty-one trillion, twenty billion, ten thousand, two hundred ten".