1002121220011 has 8 divisors (see below), whose sum is σ = 1003919533760. Its totient is φ = 1000324510272.

The previous prime is 1002121219987. The next prime is 1002121220017. The reversal of 1002121220011 is 1100221212001.

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-1002121220011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002121219973 and 1002121220000.

It is not an unprimeable number, because it can be changed into a prime (1002121220017) 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, 853150 + ... + 1652908.

It is an arithmetic number, because the mean of its divisors is an integer number (125489941720).

Almost surely, 2^{1002121220011} is an apocalyptic number.

1002121220011 is a deficient number, since it is larger than the sum of its proper divisors (1798313749).

1002121220011 is a wasteful number, since it uses less digits than its factorization.

1002121220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802005.

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

Adding to 1002121220011 its reverse (1100221212001), we get a palindrome (2102342432012).

The spelling of 1002121220011 in words is "one trillion, two billion, one hundred twenty-one million, two hundred twenty thousand, eleven".