211010210121 has 8 divisors (see below), whose sum is σ = 281393776224. Its totient is φ = 140650058720.

The previous prime is 211010210071. The next prime is 211010210123. The reversal of 211010210121 is 121012010112.

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 211010210121 - 2¹³ = 211010201929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211010210097 and 211010210106.

It is not an unprimeable number, because it can be changed into a prime (211010210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5832636 + ... + 5868701.

It is an arithmetic number, because the mean of its divisors is an integer number (35174222028).

Almost surely, 2^211010210121 is an apocalyptic number.

It is an amenable number.

211010210121 is a deficient number, since it is larger than the sum of its proper divisors (70383566103).

211010210121 is a wasteful number, since it uses less digits than its factorization.

211010210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11707351.

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

Adding to 211010210121 its reverse (121012010112), we get a palindrome (332022220233).

Subtracting from 211010210121 its reverse (121012010112), we obtain a square (89998200009 = 299997²).

The spelling of 211010210121 in words is "two hundred eleven billion, ten million, two hundred ten thousand, one hundred twenty-one".