211210121000001 has 8 divisors (see below), whose sum is σ = 281617801405920. Its totient is φ = 140804593963712.

The previous prime is 211210120999909. The next prime is 211210121000009. The reversal of 211210121000001 is 100000121012112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211210121000001 - 2⁷ = 211210120999873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211210121000009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538113531 + ... + 538505888.

It is an arithmetic number, because the mean of its divisors is an integer number (35202225175740).

Almost surely, 2^{211210121000001} is an apocalyptic number.

It is an amenable number.

211210121000001 is a deficient number, since it is larger than the sum of its proper divisors (70407680405919).

211210121000001 is a wasteful number, since it uses less digits than its factorization.

211210121000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076684815.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211210121000001 its reverse (100000121012112), we get a palindrome (311210242012113).

The spelling of 211210121000001 in words is "two hundred eleven trillion, two hundred ten billion, one hundred twenty-one million, one", and thus it is an aban number.