21122113033 has 8 divisors (see below), whose sum is σ = 24700943168. Its totient is φ = 17683629264.

The previous prime is 21122113031. The next prime is 21122113069. The reversal of 21122113033 is 33031122112.

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

It is not a de Polignac number, because 21122113033 - 2¹ = 21122113031 is a prime.

It is a super-2 number, since 2×21122113033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21122113033.

It is not an unprimeable number, because it can be changed into a prime (21122113031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35086266 + ... + 35086867.

It is an arithmetic number, because the mean of its divisors is an integer number (3087617896).

Almost surely, 2^21122113033 is an apocalyptic number.

It is an amenable number.

21122113033 is a deficient number, since it is larger than the sum of its proper divisors (3578830135).

21122113033 is an equidigital number, since it uses as much as digits as its factorization.

21122113033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70173183.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21122113033 its reverse (33031122112), we get a palindrome (54153235145).

The spelling of 21122113033 in words is "twenty-one billion, one hundred twenty-two million, one hundred thirteen thousand, thirty-three".