1220201102208 has 256 divisors, whose sum is σ = 3754982499840. Its totient is φ = 346967900160.

The previous prime is 1220201102201. The next prime is 1220201102209. The reversal of 1220201102208 is 8022011020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201102201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24174085 + ... + 24224507.

It is an arithmetic number, because the mean of its divisors is an integer number (14667900390).

Almost surely, 2^{1220201102208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220201102208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1877491249920).

1220201102208 is an abundant number, since it is smaller than the sum of its proper divisors (2534781397632).

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

1220201102208 is a wasteful number, since it uses less digits than its factorization.

1220201102208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50805 (or 50793 counting only the distinct ones).

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

Adding to 1220201102208 its reverse (8022011020221), we get a palindrome (9242212122429).

The spelling of 1220201102208 in words is "one trillion, two hundred twenty billion, two hundred one million, one hundred two thousand, two hundred eight".