12021000211 has 8 divisors (see below), whose sum is σ = 13114689984. Its totient is φ = 10927455720.

The previous prime is 12021000191. The next prime is 12021000353. The reversal of 12021000211 is 11200012021.

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 12021000211 - 2⁷ = 12021000083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021000811) 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, 208440 + ... + 259786.

It is an arithmetic number, because the mean of its divisors is an integer number (1639336248).

Almost surely, 2^12021000211 is an apocalyptic number.

12021000211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12021000211 is a deficient number, since it is larger than the sum of its proper divisors (1093689773).

12021000211 is a wasteful number, since it uses less digits than its factorization.

12021000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72641.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12021000211 its reverse (11200012021), we get a palindrome (23221012232).

The spelling of 12021000211 in words is "twelve billion, twenty-one million, two hundred eleven", and thus it is an aban number.