1202122 has 4 divisors (see below), whose sum is σ = 1803186. Its totient is φ = 601060.

The previous prime is 1202107. The next prime is 1202129. The reversal of 1202122 is 2212021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2212021 = 7 ⋅316003.

It can be written as a sum of positive squares in only one way, i.e., 1018081 + 184041 = 1009^2 + 429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1202099 and 1202108.

It is not an unprimeable number, because it can be changed into a prime (1202129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300529 + ... + 300532.

2^1202122 is an apocalyptic number.

1202122 is a deficient number, since it is larger than the sum of its proper divisors (601064).

1202122 is an equidigital number, since it uses as much as digits as its factorization.

1202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601063.

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

The square root of 1202122 is about 1096.4132432619. The cubic root of 1202122 is about 106.3284578520.

Adding to 1202122 its reverse (2212021), we get a palindrome (3414143).

It can be divided in two parts, 12021 and 22, that multiplied together give a palindrome (264462).

The spelling of 1202122 in words is "one million, two hundred two thousand, one hundred twenty-two".