11021021221002 has 64 divisors (see below), whose sum is σ = 23851929378816. Its totient is φ = 3374774504640.

The previous prime is 11021021220991. The next prime is 11021021221027. The reversal of 11021021221002 is 20012212012011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20058313 + ... + 20600435.

It is an arithmetic number, because the mean of its divisors is an integer number (372686396544).

Almost surely, 2^{11021021221002} is an apocalyptic number.

11021021221002 is an abundant number, since it is smaller than the sum of its proper divisors (12830908157814).

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

11021021221002 is a wasteful number, since it uses less digits than its factorization.

11021021221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543395.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11021021221002 its reverse (20012212012011), we get a palindrome (31033233233013).

The spelling of 11021021221002 in words is "eleven trillion, twenty-one billion, twenty-one million, two hundred twenty-one thousand, two".