211011101012 has 6 divisors (see below), whose sum is σ = 369269426778. Its totient is φ = 105505550504.

The previous prime is 211011101003. The next prime is 211011101017. The reversal of 211011101012 is 210101110112.

It can be written as a sum of positive squares in only one way, i.e., 111939761476 + 99071339536 = 334574^2 + 314756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211011100984 and 211011101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211011101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26376387623 + ... + 26376387630.

It is an arithmetic number, because the mean of its divisors is an integer number (61544904463).

Almost surely, 2^211011101012 is an apocalyptic number.

It is an amenable number.

211011101012 is a deficient number, since it is larger than the sum of its proper divisors (158258325766).

211011101012 is a wasteful number, since it uses less digits than its factorization.

211011101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52752775257 (or 52752775255 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211011101012 its reverse (210101110112), we get a palindrome (421112211124).

The spelling of 211011101012 in words is "two hundred eleven billion, eleven million, one hundred one thousand, twelve".