1221502 has 8 divisors (see below), whose sum is σ = 1845000. Its totient is φ = 606504.

The previous prime is 1221499. The next prime is 1221503. The reversal of 1221502 is 2051221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (230625).

2^1221502 is an apocalyptic number.

1221502 is a deficient number, since it is larger than the sum of its proper divisors (623498).

1221502 is a wasteful number, since it uses less digits than its factorization.

1221502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250.

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

The square root of 1221502 is about 1105.2158160287. The cubic root of 1221502 is about 106.8968056233.

Adding to 1221502 its reverse (2051221), we get a palindrome (3272723).

The spelling of 1221502 in words is "one million, two hundred twenty-one thousand, five hundred two".