21033003122 has 8 divisors (see below), whose sum is σ = 31604759472. Its totient is φ = 10498083300.

The previous prime is 21033003107. The next prime is 21033003137. The reversal of 21033003122 is 22130033012.

It is an interprime number because it is at equal distance from previous prime (21033003107) and next prime (21033003137).

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

It is a self number, because there is not a number n which added to its sum of digits gives 21033003122.

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, 9207704 + ... + 9209987.

It is an arithmetic number, because the mean of its divisors is an integer number (3950594934).

Almost surely, 2^21033003122 is an apocalyptic number.

21033003122 is a deficient number, since it is larger than the sum of its proper divisors (10571756350).

21033003122 is a wasteful number, since it uses less digits than its factorization.

21033003122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18418264.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21033003122 its reverse (22130033012), we get a palindrome (43163036134).

The spelling of 21033003122 in words is "twenty-one billion, thirty-three million, three thousand, one hundred twenty-two".