1002100122211 has 4 divisors (see below), whose sum is σ = 1002110703400. Its totient is φ = 1002089541024.

The previous prime is 1002100122203. The next prime is 1002100122217. The reversal of 1002100122211 is 1122210012001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002100122211 - 2³ = 1002100122203 is a prime.

It is a super-2 number, since 2×1002100122211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002100122191 and 1002100122200.

It is not an unprimeable number, because it can be changed into a prime (1002100122217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5147241 + ... + 5338378.

It is an arithmetic number, because the mean of its divisors is an integer number (250527675850).

Almost surely, 2^{1002100122211} is an apocalyptic number.

1002100122211 is a deficient number, since it is larger than the sum of its proper divisors (10581189).

1002100122211 is an equidigital number, since it uses as much as digits as its factorization.

1002100122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581188.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1002100122211 its reverse (1122210012001), we get a palindrome (2124310134212).

The spelling of 1002100122211 in words is "one trillion, two billion, one hundred million, one hundred twenty-two thousand, two hundred eleven".