1002121211011 has 8 divisors (see below), whose sum is σ = 1006200123840. Its totient is φ = 998043691008.

The previous prime is 1002121210997. The next prime is 1002121211017. The reversal of 1002121211011 is 1101121212001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1002121211011 - 2²⁵ = 1002087656579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002121210982 and 1002121211000.

It is not an unprimeable number, because it can be changed into a prime (1002121211017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106025 + ... + 1796533.

It is an arithmetic number, because the mean of its divisors is an integer number (125775015480).

Almost surely, 2^{1002121211011} is an apocalyptic number.

1002121211011 is a deficient number, since it is larger than the sum of its proper divisors (4078912829).

1002121211011 is an equidigital number, since it uses as much as digits as its factorization.

1002121211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696413.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1002121211011 its reverse (1101121212001), we get a palindrome (2103242423012).

The spelling of 1002121211011 in words is "one trillion, two billion, one hundred twenty-one million, two hundred eleven thousand, eleven".