102412121 has 8 divisors (see below), whose sum is σ = 117546624. Its totient is φ = 87403680.

The previous prime is 102412103. The next prime is 102412139. The reversal of 102412121 is 121214201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102412103) and next prime (102412139).

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

It is a de Polignac number, because none of the positive numbers 2^k-102412121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102412096 and 102412105.

It is not an unprimeable number, because it can be changed into a prime (102412171) 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, 29765 + ... + 33026.

It is an arithmetic number, because the mean of its divisors is an integer number (14693328).

Almost surely, 2^102412121 is an apocalyptic number.

It is an amenable number.

102412121 is a deficient number, since it is larger than the sum of its proper divisors (15134503).

102412121 is an equidigital number, since it uses as much as digits as its factorization.

102412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63031.

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

The square root of 102412121 is about 10119.8874005594. The cubic root of 102412121 is about 467.8612967707.

Adding to 102412121 its reverse (121214201), we get a palindrome (223626322).

The spelling of 102412121 in words is "one hundred two million, four hundred twelve thousand, one hundred twenty-one".