211122221001011 has 8 divisors (see below), whose sum is σ = 214180450652880. Its totient is φ = 208084866637312.

The previous prime is 211122221000987. The next prime is 211122221001019. The reversal of 211122221001011 is 110100122221112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211122221001011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122221001019) 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, 5218801670 + ... + 5218842123.

It is an arithmetic number, because the mean of its divisors is an integer number (26772556331610).

Almost surely, 2^{211122221001011} is an apocalyptic number.

211122221001011 is a deficient number, since it is larger than the sum of its proper divisors (3058229651869).

211122221001011 is a wasteful number, since it uses less digits than its factorization.

211122221001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437644085.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211122221001011 its reverse (110100122221112), we get a palindrome (321222343222123).

The spelling of 211122221001011 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, one thousand, eleven".