22001022120242 has 64 divisors (see below), whose sum is σ = 37249230412800. Its totient is φ = 9657966674880.

The previous prime is 22001022120241. The next prime is 22001022120247. The reversal of 22001022120242 is 24202122010022.

It is a super-2 number, since 2×22001022120242² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22001022120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 554735009 + ... + 554774667.

It is an arithmetic number, because the mean of its divisors is an integer number (582019225200).

Almost surely, 2^{22001022120242} is an apocalyptic number.

22001022120242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22001022120242 is a deficient number, since it is larger than the sum of its proper divisors (15248208292558).

22001022120242 is a wasteful number, since it uses less digits than its factorization.

22001022120242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44751.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22001022120242 its reverse (24202122010022), we get a palindrome (46203144130264).

The spelling of 22001022120242 in words is "twenty-two trillion, one billion, twenty-two million, one hundred twenty thousand, two hundred forty-two".