10121211 has 12 divisors (see below), whose sum is σ = 14960088. Its totient is φ = 6590304.

The previous prime is 10121183. The next prime is 10121233. The reversal of 10121211 is 11212101.

It is a happy number.

It is not a de Polignac number, because 10121211 - 2⁶ = 10121147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10121193 and 10121202.

It is not an unprimeable number, because it can be changed into a prime (10121611) 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 in 11 ways as a sum of consecutive naturals, for example, 12690 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (1246674).

Almost surely, 2^10121211 is an apocalyptic number.

10121211 is a deficient number, since it is larger than the sum of its proper divisors (4838877).

10121211 is a wasteful number, since it uses less digits than its factorization.

10121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26202 (or 26199 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 10121211 is about 3181.3850757178. The cubic root of 10121211 is about 216.3104460872.

Adding to 10121211 its reverse (11212101), we get a palindrome (21333312).

It can be divided in two parts, 101 and 21211, that added together give a palindrome (21312).

The spelling of 10121211 in words is "ten million, one hundred twenty-one thousand, two hundred eleven".