12021502 has 8 divisors (see below), whose sum is σ = 18816336. Its totient is φ = 5749392.

The previous prime is 12021491. The next prime is 12021539. The reversal of 12021502 is 20512021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130623 + ... + 130714.

It is an arithmetic number, because the mean of its divisors is an integer number (2352042).

Almost surely, 2^12021502 is an apocalyptic number.

12021502 is a deficient number, since it is larger than the sum of its proper divisors (6794834).

12021502 is a wasteful number, since it uses less digits than its factorization.

12021502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261362.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 12021502 is about 3467.2037724945. The cubic root of 12021502 is about 229.0795093944.

Adding to 12021502 its reverse (20512021), we get a palindrome (32533523).

It can be divided in two parts, 1202 and 1502, that added together give a square (2704 = 52²).

The spelling of 12021502 in words is "twelve million, twenty-one thousand, five hundred two".