121517214 has 64 divisors (see below), whose sum is σ = 300389376. Its totient is φ = 31912704.

The previous prime is 121517203. The next prime is 121517243. The reversal of 121517214 is 412715121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249279 + ... + 249765.

It is an arithmetic number, because the mean of its divisors is an integer number (4693584).

Almost surely, 2^121517214 is an apocalyptic number.

121517214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121517214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150194688).

121517214 is an abundant number, since it is smaller than the sum of its proper divisors (178872162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121517214 is a wasteful number, since it uses less digits than its factorization.

121517214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its digits is 560, while the sum is 24.

The square root of 121517214 is about 11023.4846577659. The cubic root of 121517214 is about 495.3124769192.

The spelling of 121517214 in words is "one hundred twenty-one million, five hundred seventeen thousand, two hundred fourteen".