10211210121211 has 24 divisors (see below), whose sum is σ = 11506284421632. Its totient is φ = 9050862783600.

The previous prime is 10211210121163. The next prime is 10211210121223. The reversal of 10211210121211 is 11212101211201.

It is not a de Polignac number, because 10211210121211 - 2⁷ = 10211210121083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10211210121251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1917885 + ... + 4909246.

It is an arithmetic number, because the mean of its divisors is an integer number (479428517568).

Almost surely, 2^{10211210121211} is an apocalyptic number.

10211210121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10211210121211 is a deficient number, since it is larger than the sum of its proper divisors (1295074300421).

10211210121211 is a wasteful number, since it uses less digits than its factorization.

10211210121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827463 (or 6827452 counting only the distinct ones).

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

Adding to 10211210121211 its reverse (11212101211201), we get a palindrome (21423311332412).

The spelling of 10211210121211 in words is "ten trillion, two hundred eleven billion, two hundred ten million, one hundred twenty-one thousand, two hundred eleven".