11011221002012 has 24 divisors (see below), whose sum is σ = 24024482186880. Its totient is φ = 4290086104560.

The previous prime is 11011221002011. The next prime is 11011221002039. The reversal of 11011221002012 is 21020012211011.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011221002011) 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, 17875358462 + ... + 17875359077.

It is an arithmetic number, because the mean of its divisors is an integer number (1001020091120).

Almost surely, 2^{11011221002012} is an apocalyptic number.

It is an amenable number.

11011221002012 is an abundant number, since it is smaller than the sum of its proper divisors (13013261184868).

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

11011221002012 is a wasteful number, since it uses less digits than its factorization.

11011221002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35750717561 (or 35750717559 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11011221002012 its reverse (21020012211011), we get a palindrome (32031233213023).

The spelling of 11011221002012 in words is "eleven trillion, eleven billion, two hundred twenty-one million, two thousand, twelve".