1220444420200 has 96 divisors (see below), whose sum is σ = 2864371356000. Its totient is φ = 483563001600.

The previous prime is 1220444420191. The next prime is 1220444420219. The reversal of 1220444420200 is 20244440221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118129035 + ... + 118139365.

It is an arithmetic number, because the mean of its divisors is an integer number (29837201625).

Almost surely, 2^{1220444420200} is an apocalyptic number.

1220444420200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220444420200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432185678000).

1220444420200 is an abundant number, since it is smaller than the sum of its proper divisors (1643926935800).

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

1220444420200 is a wasteful number, since it uses less digits than its factorization.

1220444420200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15875 (or 15866 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 1220444420200 its reverse (20244440221), we get a palindrome (1240688860421).

The spelling of 1220444420200 in words is "one trillion, two hundred twenty billion, four hundred forty-four million, four hundred twenty thousand, two hundred".