211021301011 has 8 divisors (see below), whose sum is σ = 213732953280. Its totient is φ = 208310661312.

The previous prime is 211021300981. The next prime is 211021301069. The reversal of 211021301011 is 110103120112.

It is a happy number.

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 211021301011 - 2¹³ = 211021292819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211021300982 and 211021301000.

It is not an unprimeable number, because it can be changed into a prime (211021301411) 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, 170871 + ... + 671743.

It is an arithmetic number, because the mean of its divisors is an integer number (26716619160).

Almost surely, 2^211021301011 is an apocalyptic number.

211021301011 is a deficient number, since it is larger than the sum of its proper divisors (2711652269).

211021301011 is an equidigital number, since it uses as much as digits as its factorization.

211021301011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506285.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211021301011 its reverse (110103120112), we get a palindrome (321124421123).

The spelling of 211021301011 in words is "two hundred eleven billion, twenty-one million, three hundred one thousand, eleven".