1222211120000 has 320 divisors, whose sum is σ = 3285356474400. Its totient is φ = 450081792000.

The previous prime is 1222211119979. The next prime is 1222211120021. The reversal of 1222211120000 is 211122221.

It is an interprime number because it is at equal distance from previous prime (1222211119979) and next prime (1222211120021).

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 456558662 + ... + 456561338.

Almost surely, 2^{1222211120000} is an apocalyptic number.

1222211120000 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 1222211120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642678237200).

1222211120000 is an abundant number, since it is smaller than the sum of its proper divisors (2063145354400).

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

1222211120000 is an equidigital number, since it uses as much as digits as its factorization.

1222211120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163 (or 3136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1222211120000 its reverse (211122221), we get a palindrome (1222422242221).

The spelling of 1222211120000 in words is "one trillion, two hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand".