12221000210 has 16 divisors (see below), whose sum is σ = 22083399576. Its totient is φ = 4869378048.

The previous prime is 12221000179. The next prime is 12221000219. The reversal of 12221000210 is 1200012221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10231929409 + 1989070801 = 101153^2 + 44599^2 .

It is a super-2 number, since 2×12221000210² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221000191 and 12221000200.

It is not an unprimeable number, because it can be changed into a prime (12221000219) 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, 2375057 + ... + 2380196.

Almost surely, 2^12221000210 is an apocalyptic number.

12221000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221000210 is a deficient number, since it is larger than the sum of its proper divisors (9862399366).

12221000210 is a wasteful number, since it uses less digits than its factorization.

12221000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755517.

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

Adding to 12221000210 its reverse (1200012221), we get a palindrome (13421012431).

The spelling of 12221000210 in words is "twelve billion, two hundred twenty-one million, two hundred ten", and thus it is an aban number.