11211121211002 has 8 divisors (see below), whose sum is σ = 16816760989812. Its totient is φ = 5605534214400.

The previous prime is 11211121210963. The next prime is 11211121211041. The reversal of 11211121211002 is 20011212111211.

It is an interprime number because it is at equal distance from previous prime (11211121210963) and next prime (11211121211041).

It can be written as a sum of positive squares in 2 ways, for example, as 9993874593481 + 1217246617521 = 3161309^2 + 1103289^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12660199 + ... + 13516762.

Almost surely, 2^{11211121211002} is an apocalyptic number.

11211121211002 is a deficient number, since it is larger than the sum of its proper divisors (5605639778810).

11211121211002 is a wasteful number, since it uses less digits than its factorization.

11211121211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26391104.

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

Adding to 11211121211002 its reverse (20011212111211), we get a palindrome (31222333322213).

The spelling of 11211121211002 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-one million, two hundred eleven thousand, two".