1001211222002 has 8 divisors (see below), whose sum is σ = 1501837198812. Its totient is φ = 500598822400.

The previous prime is 1001211221977. The next prime is 1001211222017. The reversal of 1001211222002 is 2002221121001.

It can be written as a sum of positive squares in 2 ways, for example, as 945812655841 + 55398566161 = 972529^2 + 235369^2 .

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

It is a super-2 number, since 2×1001211222002² (a number of 25 digits) contains 22 as substring.

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, 3207899 + ... + 3506142.

Almost surely, 2^{1001211222002} is an apocalyptic number.

1001211222002 is a deficient number, since it is larger than the sum of its proper divisors (500625976810).

1001211222002 is an equidigital number, since it uses as much as digits as its factorization.

1001211222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6788604.

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

Adding to 1001211222002 its reverse (2002221121001), we get a palindrome (3003432343003).

The spelling of 1001211222002 in words is "one trillion, one billion, two hundred eleven million, two hundred twenty-two thousand, two".