15221014 has 16 divisors (see below), whose sum is σ = 24176880. Its totient is φ = 7166880.

The previous prime is 15220979. The next prime is 15221029. The reversal of 15221014 is 41012251.

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, 5772 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (1511055).

Almost surely, 2^15221014 is an apocalyptic number.

15221014 is a deficient number, since it is larger than the sum of its proper divisors (8955866).

15221014 is a wasteful number, since it uses less digits than its factorization.

15221014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 15221014 is about 3901.4117957478. The cubic root of 15221014 is about 247.8265675217.

Adding to 15221014 its reverse (41012251), we get a palindrome (56233265).

It can be divided in two parts, 152 and 21014, that multiplied together give a triangular number (3194128 = T₂₅₂₇).

The spelling of 15221014 in words is "fifteen million, two hundred twenty-one thousand, fourteen".