1222212200000 has 336 divisors, whose sum is σ = 3413922494976. Its totient is φ = 430080000000.

The previous prime is 1222212199993. The next prime is 1222212200023. The reversal of 1222212200000 is 22122221.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68191040 + ... + 68208960.

It is an arithmetic number, because the mean of its divisors is an integer number (10160483616).

Almost surely, 2^{1222212200000} is an apocalyptic number.

1222212200000 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 1222212200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706961247488).

1222212200000 is an abundant number, since it is smaller than the sum of its proper divisors (2191710294976).

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

1222212200000 is an equidigital number, since it uses as much as digits as its factorization.

1222212200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18000 (or 17970 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1222212200000 its reverse (22122221), we get a palindrome (1222234322221).

The spelling of 1222212200000 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred thousand".