1022202 has 24 divisors (see below), whose sum is σ = 2239380. Its totient is φ = 336960.

The previous prime is 1022201. The next prime is 1022209. The reversal of 1022202 is 2022201.

It can be written as a sum of positive squares in 2 ways, for example, as 1022121 + 81 = 1011^2 + 9^2 .

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 (1022201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1702 + ... + 2222.

2^1022202 is an apocalyptic number.

1022202 is an abundant number, since it is smaller than the sum of its proper divisors (1217178).

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

1022202 is a wasteful number, since it uses less digits than its factorization.

1022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 635 counting only the distinct ones).

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

The square root of 1022202 is about 1011.0400585536. The cubic root of 1022202 is about 100.7346562516.

Adding to 1022202 its reverse (2022201), we get a palindrome (3044403).

Subtracting 1022202 from its reverse (2022201), we obtain a palindrome (999999).

It can be divided in two parts, 102 and 2202, that added together give a square (2304 = 48²).

The spelling of 1022202 in words is "one million, twenty-two thousand, two hundred two".