12211310000 has 50 divisors (see below), whose sum is σ = 29564826852. Its totient is φ = 4884520000.

The previous prime is 12211309993. The next prime is 12211310047. The reversal of 12211310000 is 1311221.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×12211310000² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 600566 + ... + 620565.

Almost surely, 2^12211310000 is an apocalyptic number.

12211310000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211310000 is an abundant number, since it is smaller than the sum of its proper divisors (17353516852).

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

12211310000 is an equidigital number, since it uses as much as digits as its factorization.

12211310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221159 (or 1221138 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12211310000 its reverse (1311221), we get a palindrome (12212621221).

The spelling of 12211310000 in words is "twelve billion, two hundred eleven million, three hundred ten thousand".