22021112123033 has 4 divisors (see below), whose sum is σ = 23316471659700. Its totient is φ = 20725752586368.

The previous prime is 22021112122987. The next prime is 22021112123041. The reversal of 22021112123033 is 33032121112022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7036138215184 + 14984973907849 = 2652572^2 + 3871043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021112123033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021112123333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647679768308 + ... + 647679768341.

It is an arithmetic number, because the mean of its divisors is an integer number (5829117914925).

Almost surely, 2^{22021112123033} is an apocalyptic number.

It is an amenable number.

22021112123033 is a deficient number, since it is larger than the sum of its proper divisors (1295359536667).

22021112123033 is a wasteful number, since it uses less digits than its factorization.

22021112123033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295359536666.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 22021112123033 its reverse (33032121112022), we get a palindrome (55053233235055).

The spelling of 22021112123033 in words is "twenty-two trillion, twenty-one billion, one hundred twelve million, one hundred twenty-three thousand, thirty-three".