1220000222000 has 240 divisors, whose sum is σ = 3558178458432. Its totient is φ = 396269107200.

The previous prime is 1220000221991. The next prime is 1220000222009. The reversal of 1220000222000 is 2220000221.

It is an interprime number because it is at equal distance from previous prime (1220000221991) and next prime (1220000222009).

It is not an unprimeable number, because it can be changed into a prime (1220000222009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4933304 + ... + 5174696.

Almost surely, 2^{1220000222000} is an apocalyptic number.

1220000222000 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 1220000222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1779089229216).

1220000222000 is an abundant number, since it is smaller than the sum of its proper divisors (2338178236432).

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

1220000222000 is a wasteful number, since it uses less digits than its factorization.

1220000222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241461 (or 241426 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 1220000222000 its reverse (2220000221), we get a palindrome (1222220222221).

The spelling of 1220000222000 in words is "one trillion, two hundred twenty billion, two hundred twenty-two thousand".