10212110121 has 16 divisors (see below), whose sum is σ = 13659383808. Its totient is φ = 6786483600.

The previous prime is 10212110107. The next prime is 10212110131. The reversal of 10212110121 is 12101121201.

It is not a de Polignac number, because 10212110121 - 2¹¹ = 10212108073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212110097 and 10212110106.

It is not an unprimeable number, because it can be changed into a prime (10212110131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1951110 + ... + 1956336.

It is an arithmetic number, because the mean of its divisors is an integer number (853711488).

Almost surely, 2^10212110121 is an apocalyptic number.

It is an amenable number.

10212110121 is a deficient number, since it is larger than the sum of its proper divisors (3447273687).

10212110121 is a wasteful number, since it uses less digits than its factorization.

10212110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172.

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

Adding to 10212110121 its reverse (12101121201), we get a palindrome (22313231322).

The spelling of 10212110121 in words is "ten billion, two hundred twelve million, one hundred ten thousand, one hundred twenty-one".