1220226867200 has 336 divisors, whose sum is σ = 3322318268736. Its totient is φ = 440863948800.

The previous prime is 1220226867199. The next prime is 1220226867227. The reversal of 1220226867200 is 27686220221.

It is a congruent number.

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, 367204739 + ... + 367208061.

Almost surely, 2^{1220226867200} is an apocalyptic number.

1220226867200 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 1220226867200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1661159134368).

1220226867200 is an abundant number, since it is smaller than the sum of its proper divisors (2102091401536).

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

1220226867200 is a wasteful number, since it uses less digits than its factorization.

1220226867200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533 (or 3504 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 1220226867200 in words is "one trillion, two hundred twenty billion, two hundred twenty-six million, eight hundred sixty-seven thousand, two hundred".