1220303322210 has 128 divisors (see below), whose sum is σ = 3383608909824. Its totient is φ = 275891950080.

The previous prime is 1220303322193. The next prime is 1220303322241. The reversal of 1220303322210 is 122233030221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18503995 + ... + 18569825.

It is an arithmetic number, because the mean of its divisors is an integer number (26434444608).

Almost surely, 2^{1220303322210} is an apocalyptic number.

1220303322210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220303322210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1691804454912).

1220303322210 is an abundant number, since it is smaller than the sum of its proper divisors (2163305587614).

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

1220303322210 is a wasteful number, since it uses less digits than its factorization.

1220303322210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66808.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220303322210 its reverse (122233030221), we get a palindrome (1342536352431).

The spelling of 1220303322210 in words is "one trillion, two hundred twenty billion, three hundred three million, three hundred twenty-two thousand, two hundred ten".