21122000303 has 2 divisors, whose sum is σ = 21122000304. Its totient is φ = 21122000302.

The previous prime is 21122000279. The next prime is 21122000327. The reversal of 21122000303 is 30300022112.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (21122000279) and next prime (21122000327).

It is a cyclic number.

It is not a de Polignac number, because 21122000303 - 2¹⁴ = 21121983919 is a prime.

It is a super-2 number, since 2×21122000303² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21122000203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561000151 + 10561000152.

It is an arithmetic number, because the mean of its divisors is an integer number (10561000152).

Almost surely, 2^21122000303 is an apocalyptic number.

21122000303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122000303 is an equidigital number, since it uses as much as digits as its factorization.

21122000303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21122000303 its reverse (30300022112), we get a palindrome (51422022415).

The spelling of 21122000303 in words is "twenty-one billion, one hundred twenty-two million, three hundred three", and thus it is an aban number.