1002232121 has 8 divisors (see below), whose sum is σ = 1150888800. Its totient is φ = 863166240.

The previous prime is 1002232109. The next prime is 1002232123. The reversal of 1002232121 is 1212322001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002232121 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 = 1002232096 and 1002232105.

It is not an unprimeable number, because it can be changed into a prime (1002232123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2397476 + ... + 2397893.

It is an arithmetic number, because the mean of its divisors is an integer number (143861100).

Almost surely, 2^1002232121 is an apocalyptic number.

1002232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002232121 is a deficient number, since it is larger than the sum of its proper divisors (148656679).

1002232121 is a wasteful number, since it uses less digits than its factorization.

1002232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795399.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1002232121 is about 31658.0498609753. The cubic root of 1002232121 is about 1000.7434874228.

Adding to 1002232121 its reverse (1212322001), we get a palindrome (2214554122).

The spelling of 1002232121 in words is "one billion, two million, two hundred thirty-two thousand, one hundred twenty-one".