10122121 has 8 divisors (see below), whose sum is σ = 10418688. Its totient is φ = 9828000.

The previous prime is 10122113. The next prime is 10122143. The reversal of 10122121 is 12122101.

10122121 is digitally balanced in base 2, 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 not a de Polignac number, because 10122121 - 2³ = 10122113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122098 and 10122107.

It is not an unprimeable number, because it can be changed into a prime (10122221) 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, 10656 + ... + 11566.

It is an arithmetic number, because the mean of its divisors is an integer number (1302336).

Almost surely, 2^10122121 is an apocalyptic number.

It is an amenable number.

10122121 is a deficient number, since it is larger than the sum of its proper divisors (296567).

10122121 is an equidigital number, since it uses as much as digits as its factorization.

10122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 10122121 is about 3181.5280919709. The cubic root of 10122121 is about 216.3169287306.

Adding to 10122121 its reverse (12122101), we get a palindrome (22244222).

It can be divided in two parts, 101 and 22121, that added together give a palindrome (22222).

The spelling of 10122121 in words is "ten million, one hundred twenty-two thousand, one hundred twenty-one".