11212021002 has 128 divisors (see below), whose sum is σ = 29066526720. Its totient is φ = 2802159360.

The previous prime is 11212020991. The next prime is 11212021039. The reversal of 11212021002 is 20012021211.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1364727 + ... + 1372917.

It is an arithmetic number, because the mean of its divisors is an integer number (227082240).

Almost surely, 2^11212021002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212021002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14533263360).

11212021002 is an abundant number, since it is smaller than the sum of its proper divisors (17854505718).

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

11212021002 is a wasteful number, since it uses less digits than its factorization.

11212021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8348.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11212021002 its reverse (20012021211), we get a palindrome (31224042213).

The spelling of 11212021002 in words is "eleven billion, two hundred twelve million, twenty-one thousand, two".