1001002021211 has 8 divisors (see below), whose sum is σ = 1033504435584. Its totient is φ = 968512858560.

The previous prime is 1001002021199. The next prime is 1001002021241. The reversal of 1001002021211 is 1121202001001.

1001002021211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001002021211 is a prime.

It is a super-3 number, since 3×1001002021211³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001002021192 and 1001002021201.

It is not an unprimeable number, because it can be changed into a prime (1001002021241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3159290 + ... + 3461663.

It is an arithmetic number, because the mean of its divisors is an integer number (129188054448).

Almost surely, 2^{1001002021211} is an apocalyptic number.

1001002021211 is a deficient number, since it is larger than the sum of its proper divisors (32502414373).

1001002021211 is an equidigital number, since it uses as much as digits as its factorization.

1001002021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625861.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001002021211 its reverse (1121202001001), we get a palindrome (2122204022212).

The spelling of 1001002021211 in words is "one trillion, one billion, two million, twenty-one thousand, two hundred eleven".