22302021042 has 96 divisors (see below), whose sum is σ = 56518705152. Its totient is φ = 6223201632.

The previous prime is 22302021037. The next prime is 22302021043. The reversal of 22302021042 is 24012020322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22302021043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2975023 + ... + 2982509.

It is an arithmetic number, because the mean of its divisors is an integer number (588736512).

Almost surely, 2^22302021042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22302021042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28259352576).

22302021042 is an abundant number, since it is smaller than the sum of its proper divisors (34216684110).

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

22302021042 is a wasteful number, since it uses less digits than its factorization.

22302021042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052 (or 8049 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22302021042 its reverse (24012020322), we get a palindrome (46314041364).

The spelling of 22302021042 in words is "twenty-two billion, three hundred two million, twenty-one thousand, forty-two".