22121101240 has 64 divisors (see below), whose sum is σ = 56959925760. Its totient is φ = 7574098560.

The previous prime is 22121101217. The next prime is 22121101259. The reversal of 22121101240 is 4210112122.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 154875 + ... + 261205.

It is an arithmetic number, because the mean of its divisors is an integer number (889998840).

Almost surely, 2^22121101240 is an apocalyptic number.

22121101240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121101240 is an abundant number, since it is smaller than the sum of its proper divisors (34838824520).

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

22121101240 is a wasteful number, since it uses less digits than its factorization.

22121101240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107092 (or 107088 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22121101240 its reverse (4210112122), we get a palindrome (26331213362).

The spelling of 22121101240 in words is "twenty-two billion, one hundred twenty-one million, one hundred one thousand, two hundred forty".