10212202121 has 8 divisors (see below), whose sum is σ = 11141918688. Its totient is φ = 9282708000.

The previous prime is 10212202069. The next prime is 10212202123. The reversal of 10212202121 is 12120221201.

10212202121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212202121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212202096 and 10212202105.

It is not an unprimeable number, because it can be changed into a prime (10212202123) 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, 48941 + ... + 151061.

It is an arithmetic number, because the mean of its divisors is an integer number (1392739836).

Almost surely, 2^10212202121 is an apocalyptic number.

10212202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10212202121 is a deficient number, since it is larger than the sum of its proper divisors (929716567).

10212202121 is a wasteful number, since it uses less digits than its factorization.

10212202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111223.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10212202121 its reverse (12120221201), we get a palindrome (22332423322).

The spelling of 10212202121 in words is "ten billion, two hundred twelve million, two hundred two thousand, one hundred twenty-one".