22121023212242 has 8 divisors (see below), whose sum is σ = 33320369692800. Its totient is φ = 11014233314644.

The previous prime is 22121023212227. The next prime is 22121023212263. The reversal of 22121023212242 is 24221232012122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23139145142 + ... + 23139146097.

It is an arithmetic number, because the mean of its divisors is an integer number (4165046211600).

Almost surely, 2^{22121023212242} is an apocalyptic number.

22121023212242 is a deficient number, since it is larger than the sum of its proper divisors (11199346480558).

22121023212242 is a wasteful number, since it uses less digits than its factorization.

22121023212242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46278291480.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 22121023212242 its reverse (24221232012122), we get a palindrome (46342255224364).

The spelling of 22121023212242 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-three million, two hundred twelve thousand, two hundred forty-two".