211020011001211 has 16 divisors (see below), whose sum is σ = 212195883803904. Its totient is φ = 209846611436544.

The previous prime is 211020011001203. The next prime is 211020011001221. The reversal of 211020011001211 is 112100110020112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 211020011001211 - 2³ = 211020011001203 is a prime.

It is a super-5 number, since 5×211020011001211⁵ (a number of 73 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211020011001191 and 211020011001200.

It is not an unprimeable number, because it can be changed into a prime (211020011001221) 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, 603320566 + ... + 603670228.

It is an arithmetic number, because the mean of its divisors is an integer number (13262242737744).

Almost surely, 2^{211020011001211} is an apocalyptic number.

211020011001211 is a deficient number, since it is larger than the sum of its proper divisors (1175872802693).

211020011001211 is a wasteful number, since it uses less digits than its factorization.

211020011001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353190.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211020011001211 its reverse (112100110020112), we get a palindrome (323120121021323).

The spelling of 211020011001211 in words is "two hundred eleven trillion, twenty billion, eleven million, one thousand, two hundred eleven".