1222002 has 24 divisors (see below), whose sum is σ = 2740140. Its totient is φ = 393120.

The previous prime is 1221971. The next prime is 1222003. The reversal of 1222002 is 2002221.

It can be written as a sum of positive squares in 2 ways, for example, as 1212201 + 9801 = 1101^2 + 99^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1222003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649 + ... + 1692.

2^1222002 is an apocalyptic number.

1222002 is an abundant number, since it is smaller than the sum of its proper divisors (1518138).

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

1222002 is a wasteful number, since it uses less digits than its factorization.

1222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1222002 is about 1105.4419930507. The cubic root of 1222002 is about 106.9113890656.

Adding to 1222002 its reverse (2002221), we get a palindrome (3224223).

The spelling of 1222002 in words is "one million, two hundred twenty-two thousand, two".