21033420044022 has 32 divisors (see below), whose sum is σ = 46741391055360. Its totient is φ = 7011071371080.

The previous prime is 21033420043991. The next prime is 21033420044023. The reversal of 21033420044022 is 22044002433012.

21033420044022 is a `hidden beast` number, since 2 + 10 + 3 + 3 + 4 + 200 + 440 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033420044023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3817423 + ... + 7525925.

It is an arithmetic number, because the mean of its divisors is an integer number (1460668470480).

Almost surely, 2^{21033420044022} is an apocalyptic number.

21033420044022 is an abundant number, since it is smaller than the sum of its proper divisors (25707971011338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21033420044022 is a wasteful number, since it uses less digits than its factorization.

21033420044022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813545 (or 3813539 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 21033420044022 its reverse (22044002433012), we get a palindrome (43077422477034).

The spelling of 21033420044022 in words is "twenty-one trillion, thirty-three billion, four hundred twenty million, forty-four thousand, twenty-two".