22121242230342 has 32 divisors (see below), whose sum is σ = 44466011251200. Its totient is φ = 7336494950400.

The previous prime is 22121242230331. The next prime is 22121242230377. The reversal of 22121242230342 is 24303224212122.

It is a super-4 number, since 4×22121242230342⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47759967 + ... + 48220917.

It is an arithmetic number, because the mean of its divisors is an integer number (1389562851600).

Almost surely, 2^{22121242230342} is an apocalyptic number.

22121242230342 is an abundant number, since it is smaller than the sum of its proper divisors (22344769020858).

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

22121242230342 is a wasteful number, since it uses less digits than its factorization.

22121242230342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501348.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 22121242230342 its reverse (24303224212122), we get a palindrome (46424466442464).

The spelling of 22121242230342 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred forty-two million, two hundred thirty thousand, three hundred forty-two".