22121122102242 has 32 divisors (see below), whose sum is σ = 44905552632000. Its totient is φ = 7263170553408.

The previous prime is 22121122102241. The next prime is 22121122102243. The reversal of 22121122102242 is 24220122112122.

It is an interprime number because it is at equal distance from previous prime (22121122102241) and next prime (22121122102243).

It is not an unprimeable number, because it can be changed into a prime (22121122102241) 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, 4273684 + ... + 7906112.

It is an arithmetic number, because the mean of its divisors is an integer number (1403298519750).

Almost surely, 2^{22121122102242} is an apocalyptic number.

22121122102242 is an abundant number, since it is smaller than the sum of its proper divisors (22784430529758).

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

22121122102242 is a wasteful number, since it uses less digits than its factorization.

22121122102242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647650.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 22121122102242 its reverse (24220122112122), we get a palindrome (46341244214364).

The spelling of 22121122102242 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, two hundred forty-two".