1212211022000 has 160 divisors (see below), whose sum is σ = 3271957438464. Its totient is φ = 430552416000.

The previous prime is 1212211021993. The next prime is 1212211022041. The reversal of 1212211022000 is 2201122121.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 305297 + ... + 1586703.

Almost surely, 2^{1212211022000} is an apocalyptic number.

1212211022000 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 1212211022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1635978719232).

1212211022000 is an abundant number, since it is smaller than the sum of its proper divisors (2059746416464).

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

1212211022000 is a wasteful number, since it uses less digits than its factorization.

1212211022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281484 (or 1281468 counting only the distinct ones).

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

Adding to 1212211022000 its reverse (2201122121), we get a palindrome (1214412144121).

The spelling of 1212211022000 in words is "one trillion, two hundred twelve billion, two hundred eleven million, twenty-two thousand".