10221220012210 has 16 divisors (see below), whose sum is σ = 19032616575000. Its totient is φ = 3947505659776.

The previous prime is 10221220012189. The next prime is 10221220012217. The reversal of 10221220012210 is 1221002212201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8489571933969 + 1731648078241 = 2913687^2 + 1315921^2 .

It is not an unprimeable number, because it can be changed into a prime (10221220012217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17622792835 + ... + 17622793414.

Almost surely, 2^{10221220012210} is an apocalyptic number.

10221220012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221220012210 is a deficient number, since it is larger than the sum of its proper divisors (8811396562790).

10221220012210 is a wasteful number, since it uses less digits than its factorization.

10221220012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35245586285.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10221220012210 its reverse (1221002212201), we get a palindrome (11442222224411).

The spelling of 10221220012210 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty million, twelve thousand, two hundred ten".