1001211221202 has 8 divisors (see below), whose sum is σ = 2002422442416. Its totient is φ = 333737073732.

The previous prime is 1001211221147. The next prime is 1001211221209. The reversal of 1001211221202 is 2021221121001.

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

1001211221202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1001211221209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83434268428 + ... + 83434268439.

It is an arithmetic number, because the mean of its divisors is an integer number (250302805302).

Almost surely, 2^{1001211221202} is an apocalyptic number.

1001211221202 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.

1001211221202 is a wasteful number, since it uses less digits than its factorization.

1001211221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166868536872.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1001211221202 its reverse (2021221121001), we get a palindrome (3022432342203).

The spelling of 1001211221202 in words is "one trillion, one billion, two hundred eleven million, two hundred twenty-one thousand, two hundred two".