121305214 has 16 divisors (see below), whose sum is σ = 187266816. Its totient is φ = 58903000.

The previous prime is 121305199. The next prime is 121305229. The reversal of 121305214 is 412503121.

It is an interprime number because it is at equal distance from previous prime (121305199) and next prime (121305229).

It is a junction number, because it is equal to n+sod(n) for n = 121305191 and 121305200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7389 + ... + 17239.

It is an arithmetic number, because the mean of its divisors is an integer number (11704176).

Almost surely, 2^121305214 is an apocalyptic number.

121305214 is a deficient number, since it is larger than the sum of its proper divisors (65961602).

121305214 is a wasteful number, since it uses less digits than its factorization.

121305214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10031.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 121305214 is about 11013.8646260066. The cubic root of 121305214 is about 495.0242670822.

Adding to 121305214 its reverse (412503121), we get a palindrome (533808335).

The spelling of 121305214 in words is "one hundred twenty-one million, three hundred five thousand, two hundred fourteen".