211000020121006 has 4 divisors (see below), whose sum is σ = 316500030181512. Its totient is φ = 105500010060502.

The previous prime is 211000020121003. The next prime is 211000020121021. The reversal of 211000020121006 is 600121020000112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000020121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52750005030250 + ... + 52750005030253.

It is an arithmetic number, because the mean of its divisors is an integer number (79125007545378).

Almost surely, 2^{211000020121006} is an apocalyptic number.

211000020121006 is a deficient number, since it is larger than the sum of its proper divisors (105500010060506).

211000020121006 is a wasteful number, since it uses less digits than its factorization.

211000020121006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105500010060505.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211000020121006 its reverse (600121020000112), we get a palindrome (811121040121118).

The spelling of 211000020121006 in words is "two hundred eleven trillion, twenty million, one hundred twenty-one thousand, six".