11011221121002 has 8 divisors (see below), whose sum is σ = 22022442242016. Its totient is φ = 3670407040332.

The previous prime is 11011221120961. The next prime is 11011221121063. The reversal of 11011221121002 is 20012112211011.

It is a happy number.

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

11011221121002 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917601760078 + ... + 917601760089.

It is an arithmetic number, because the mean of its divisors is an integer number (2752805280252).

Almost surely, 2^{11011221121002} is an apocalyptic number.

11011221121002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11011221121002 is a wasteful number, since it uses less digits than its factorization.

11011221121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835203520172.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11011221121002 its reverse (20012112211011), we get a palindrome (31023333332013).

The spelling of 11011221121002 in words is "eleven trillion, eleven billion, two hundred twenty-one million, one hundred twenty-one thousand, two".