22121302223042 has 16 divisors (see below), whose sum is σ = 36198635055264. Its totient is φ = 10055098344000.

The previous prime is 22121302223039. The next prime is 22121302223051. The reversal of 22121302223042 is 24032220312122.

It is a super-2 number, since 2×22121302223042² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4288442 + ... + 7914122.

It is an arithmetic number, because the mean of its divisors is an integer number (2262414690954).

Almost surely, 2^{22121302223042} is an apocalyptic number.

22121302223042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22121302223042 is a deficient number, since it is larger than the sum of its proper divisors (14077332832222).

22121302223042 is a wasteful number, since it uses less digits than its factorization.

22121302223042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903025.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22121302223042 its reverse (24032220312122), we get a palindrome (46153522535164).

The spelling of 22121302223042 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred two million, two hundred twenty-three thousand, forty-two".