211212111020011 has 8 divisors (see below), whose sum is σ = 212267665471680. Its totient is φ = 210157830626112.

The previous prime is 211212111020003. The next prime is 211212111020077. The reversal of 211212111020011 is 110020111212112.

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 211212111020011 - 2³ = 211212111020003 is a prime.

It is a super-2 number, since 2×211212111020011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211212111320011) 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, 318182056 + ... + 318845173.

It is an arithmetic number, because the mean of its divisors is an integer number (26533458183960).

Almost surely, 2^{211212111020011} is an apocalyptic number.

211212111020011 is a deficient number, since it is larger than the sum of its proper divisors (1055554451669).

211212111020011 is a wasteful number, since it uses less digits than its factorization.

211212111020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637028885.

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

Adding to 211212111020011 its reverse (110020111212112), we get a palindrome (321232222232123).

The spelling of 211212111020011 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred eleven million, twenty thousand, eleven".