10212221200 has 30 divisors (see below), whose sum is σ = 24534862394. Its totient is φ = 4084888320.

The previous prime is 10212221141. The next prime is 10212221209. The reversal of 10212221200 is 212221201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 77369616 + 10134851584 = 8796^2 + 100672^2 .

It is not an unprimeable number, because it can be changed into a prime (10212221209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12764877 + ... + 12765676.

Almost surely, 2^10212221200 is an apocalyptic number.

10212221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212221200 is an abundant number, since it is smaller than the sum of its proper divisors (14322641194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10212221200 is a wasteful number, since it uses less digits than its factorization.

10212221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25530571 (or 25530560 counting only the distinct ones).

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

Adding to 10212221200 its reverse (212221201), we get a palindrome (10424442401).

Subtracting from 10212221200 its reverse (212221201), we obtain a palindrome (9999999999).

The spelling of 10212221200 in words is "ten billion, two hundred twelve million, two hundred twenty-one thousand, two hundred".