1020002122 has 8 divisors (see below), whose sum is σ = 1547194500. Its totient is φ = 504270624.

The previous prime is 1020002111. The next prime is 1020002143. The reversal of 1020002122 is 2212000201.

It can be written as a sum of positive squares in 2 ways, for example, as 850247281 + 169754841 = 29159^2 + 13029^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1020002099 and 1020002108.

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, 2864997 + ... + 2865352.

Almost surely, 2^1020002122 is an apocalyptic number.

1020002122 is a deficient number, since it is larger than the sum of its proper divisors (527192378).

1020002122 is an equidigital number, since it uses as much as digits as its factorization.

1020002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730440.

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

The square root of 1020002122 is about 31937.4720665240. The cubic root of 1020002122 is about 1006.6234076163.

Adding to 1020002122 its reverse (2212000201), we get a palindrome (3232002323).

The spelling of 1020002122 in words is "one billion, twenty million, two thousand, one hundred twenty-two".