1002121011211 has 8 divisors (see below), whose sum is σ = 1006374332880. Its totient is φ = 997871600928.

The previous prime is 1002121011187. The next prime is 1002121011247. The reversal of 1002121011211 is 1121101212001.

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 1002121011211 - 2⁷ = 1002121011083 is a prime.

It is a super-2 number, since 2×1002121011211² (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 = 1002121011191 and 1002121011200.

It is not an unprimeable number, because it can be changed into a prime (1002121011911) 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, 463776 + ... + 1489741.

It is an arithmetic number, because the mean of its divisors is an integer number (125796791610).

Almost surely, 2^{1002121011211} is an apocalyptic number.

1002121011211 is a deficient number, since it is larger than the sum of its proper divisors (4253321669).

1002121011211 is a wasteful number, since it uses less digits than its factorization.

1002121011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955693.

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

Adding to 1002121011211 its reverse (1121101212001), we get a palindrome (2123222223212).

The spelling of 1002121011211 in words is "one trillion, two billion, one hundred twenty-one million, eleven thousand, two hundred eleven".