1220012210208 has 96 divisors (see below), whose sum is σ = 3503682907200. Its totient is φ = 368641244160.

The previous prime is 1220012210201. The next prime is 1220012210233. The reversal of 1220012210208 is 8020122100221.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1220012210201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286635 + ... + 2023722.

It is an arithmetic number, because the mean of its divisors is an integer number (36496696950).

Almost surely, 2^{1220012210208} is an apocalyptic number.

It is an amenable number.

1220012210208 is an abundant number, since it is smaller than the sum of its proper divisors (2283670696992).

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

1220012210208 is a wasteful number, since it uses less digits than its factorization.

1220012210208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310730 (or 3310722 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1220012210208 its reverse (8020122100221), we get a palindrome (9240134310429).

The spelling of 1220012210208 in words is "one trillion, two hundred twenty billion, twelve million, two hundred ten thousand, two hundred eight".