1200001211022 has 8 divisors (see below), whose sum is σ = 2400002422056. Its totient is φ = 400000403672.

The previous prime is 1200001211011. The next prime is 1200001211039. The reversal of 1200001211022 is 2201121000021.

It is a sphenic number, since it is the product of 3 distinct primes.

1200001211022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1200001210989 and 1200001211007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100000100913 + ... + 100000100924.

It is an arithmetic number, because the mean of its divisors is an integer number (300000302757).

Almost surely, 2^{1200001211022} is an apocalyptic number.

1200001211022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1200001211022 is a wasteful number, since it uses less digits than its factorization.

1200001211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200000201842.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1200001211022 its reverse (2201121000021), we get a palindrome (3401122211043).

The spelling of 1200001211022 in words is "one trillion, two hundred billion, one million, two hundred eleven thousand, twenty-two".