22001301234 has 48 divisors (see below), whose sum is σ = 52018110144. Its totient is φ = 6665133600.

The previous prime is 22001301233. The next prime is 22001301239. The reversal of 22001301234 is 43210310022.

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 (22001301233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 766624 + ... + 794804.

It is an arithmetic number, because the mean of its divisors is an integer number (1083710628).

Almost surely, 2^22001301234 is an apocalyptic number.

22001301234 is an abundant number, since it is smaller than the sum of its proper divisors (30016808910).

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

22001301234 is a wasteful number, since it uses less digits than its factorization.

22001301234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32143 (or 32140 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22001301234 its reverse (43210310022), we get a palindrome (65211611256).

The spelling of 22001301234 in words is "twenty-two billion, one million, three hundred one thousand, two hundred thirty-four".