1022003121 has 8 divisors (see below), whose sum is σ = 1362847360. Its totient is φ = 681247152.

The previous prime is 1022003113. The next prime is 1022003197. The reversal of 1022003121 is 1213002201.

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

It is not a de Polignac number, because 1022003121 - 2³ = 1022003113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1022003097 and 1022003106.

It is not an unprimeable number, because it can be changed into a prime (1022003111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12840 + ... + 46998.

It is an arithmetic number, because the mean of its divisors is an integer number (170355920).

Almost surely, 2^1022003121 is an apocalyptic number.

It is an amenable number.

1022003121 is a deficient number, since it is larger than the sum of its proper divisors (340844239).

1022003121 is an equidigital number, since it uses as much as digits as its factorization.

1022003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44135.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1022003121 is about 31968.7835395718. The cubic root of 1022003121 is about 1007.2812287007.

Adding to 1022003121 its reverse (1213002201), we get a palindrome (2235005322).

The spelling of 1022003121 in words is "one billion, twenty-two million, three thousand, one hundred twenty-one".