211020210011 has 16 divisors (see below), whose sum is σ = 232071436800. Its totient is φ = 190685032608.

The previous prime is 211020210007. The next prime is 211020210013. The reversal of 211020210011 is 110012020112.

It is a cyclic number.

It is not a de Polignac number, because 211020210011 - 2² = 211020210007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211020209974 and 211020210001.

It is not an unprimeable number, because it can be changed into a prime (211020210013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392261 + ... + 758886.

It is an arithmetic number, because the mean of its divisors is an integer number (14504464800).

Almost surely, 2^211020210011 is an apocalyptic number.

211020210011 is a deficient number, since it is larger than the sum of its proper divisors (21051226789).

211020210011 is a wasteful number, since it uses less digits than its factorization.

211020210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151458.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211020210011 its reverse (110012020112), we get a palindrome (321032230123).

The spelling of 211020210011 in words is "two hundred eleven billion, twenty million, two hundred ten thousand, eleven".