1000202122 has 4 divisors (see below), whose sum is σ = 1500303186. Its totient is φ = 500101060.

The previous prime is 1000202113. The next prime is 1000202149. The reversal of 1000202122 is 2212020001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 680114241 + 320087881 = 26079^2 + 17891^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000202099 and 1000202108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250050529 + ... + 250050532.

Almost surely, 2^1000202122 is an apocalyptic number.

1000202122 is a deficient number, since it is larger than the sum of its proper divisors (500101064).

1000202122 is an equidigital number, since it uses as much as digits as its factorization.

1000202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500101063.

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

The square root of 1000202122 is about 31625.9722696394. The cubic root of 1000202122 is about 1000.0673694613.

Adding to 1000202122 its reverse (2212020001), we get a palindrome (3212222123).

The spelling of 1000202122 in words is "one billion, two hundred two thousand, one hundred twenty-two".