11211300021 has 8 divisors (see below), whose sum is σ = 15598330560. Its totient is φ = 7149234752.

The previous prime is 11211300013. The next prime is 11211300041. The reversal of 11211300021 is 12000311211.

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

It is a cyclic number.

It is not a de Polignac number, because 11211300021 - 2³ = 11211300013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211300041) 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, 81241236 + ... + 81241373.

It is an arithmetic number, because the mean of its divisors is an integer number (1949791320).

Almost surely, 2^11211300021 is an apocalyptic number.

It is an amenable number.

11211300021 is a deficient number, since it is larger than the sum of its proper divisors (4387030539).

11211300021 is a wasteful number, since it uses less digits than its factorization.

11211300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162482635.

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

Adding to 11211300021 its reverse (12000311211), we get a palindrome (23211611232).

The spelling of 11211300021 in words is "eleven billion, two hundred eleven million, three hundred thousand, twenty-one".