211012006611 has 16 divisors (see below), whose sum is σ = 321576217088. Its totient is φ = 120565497600.

The previous prime is 211012006559. The next prime is 211012006637. The reversal of 211012006611 is 116600210112.

It is not a de Polignac number, because 211012006611 - 2¹⁸ = 211011744467 is a prime.

It is a super-4 number, since 4×211012006611⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (211012006811) 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, 328510 + ... + 727971.

It is an arithmetic number, because the mean of its divisors is an integer number (20098513568).

Almost surely, 2^211012006611 is an apocalyptic number.

211012006611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211012006611 is a deficient number, since it is larger than the sum of its proper divisors (110564210477).

211012006611 is a wasteful number, since it uses less digits than its factorization.

211012006611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066002.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 211012006611 its reverse (116600210112), we get a palindrome (327612216723).

The spelling of 211012006611 in words is "two hundred eleven billion, twelve million, six thousand, six hundred eleven".