1221202 has 8 divisors (see below), whose sum is σ = 1837836. Its totient is φ = 608592.

The previous prime is 1221197. The next prime is 1221221. The reversal of 1221202 is 2021221.

It can be written as a sum of positive squares in 2 ways, for example, as 1125721 + 95481 = 1061^2 + 309^2 .

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

It is an Ulam 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, 73 + ... + 1564.

2^1221202 is an apocalyptic number.

1221202 is a deficient number, since it is larger than the sum of its proper divisors (616634).

1221202 is a wasteful number, since it uses less digits than its factorization.

1221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1221202 is about 1105.0800875955. The cubic root of 1221202 is about 106.8880536476. Note that the first 3 decimals are identical.

Adding to 1221202 its reverse (2021221), we get a palindrome (3242423).

It can be divided in two parts, 1221 and 202, that multiplied together give a palindrome (246642).

The spelling of 1221202 in words is "one million, two hundred twenty-one thousand, two hundred two".